CVE Intelligence
Critical Memory corruption

CVE-2026-1668 — Input Validation Vulnerability on Multiple Omada Switches

The web interface on multiple Omada switches does not adequately validate certain external inputs, which may lead to out-of-bound memory access when processing crafted requests. Under specific conditions, this flaw may result in unintended command execution.<br>An unauthenticated attacker with network access to the affected interface may cause memory corruption, service instability, or information disclosure. Successful exploitation may allow remote code execution or denial-of-service.

Published Mar 13, 2026 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: TPLink

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 1% (30-day exploitation probability)+9
  • Technical severity (critical)+10

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
1.02%
ahead of 63% of scored CVEs · Oct 14, 2026
Affects
TP-Link Systems Inc.
Omada Sg2005p-pd Firmware and 98 more
CVSS base
9.8
Critical · 3 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script the kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (TP-Link Systems Inc. Omada Sg2005p-pd Firmware, TP-Link Systems Inc. Omada Sg2008 Firmware, TP-Link Systems Inc. Omada Sg2008p Firmware…).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  4. Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
TP-Link Systems Inc. Omada Sg2005p-pd Firmware ≥ 1.0.0 and < 1.0.19 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2008 Firmware ≥ 4.20.0 and < 4.20.17≥ 4.30.0 and < 4.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2008p Firmware ≥ 3.20.0 and < 3.20.17≥ 3.30.0 and < 3.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2016p Firmware ≥ 1.20.0 and < 1.20.17≥ 1.30.0 and < 1.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2210mp Firmware ≥ 4.20.0 and < 4.20.18≥ 5.0.0 and < 5.0.15≥ 5.20.0 and < 5.20.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2210p Firmware ≥ 5.20.0 and < 5.20.18≥ 5.30.0 and < 5.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2210xmp-m2 Firmware ≥ 1.0.0 and < 1.0.19 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2218 Firmware ≥ 1.20.0 and < 1.20.17≥ 1.30.0 and < 1.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2218p Firmware ≥ 1.20.0 and < 1.20.17≥ 2.0.0 and < 2.0.14≥ 2.20.0 and < 2.20.2 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2428lp Firmware ≥ 1.0.0 and < 1.0.13 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2428p Firmware ≥ 5.20.0 and < 5.20.20≥ 5.30.0 and < 5.30.16 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg2452lp Firmware ≥ 1.0.0 and < 1.0.13 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3210 Firmware ≥ 3.20.0 and < 3.20.17≥ 3.30.0 and < 3.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3210x-m2 Firmware ≥ 1.20.0 and < 1.20.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3210xhp-m2 Firmware ≥ 3.0.0 and < 3.0.21 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3218xp-m2 Firmware ≥ 1.0.0 and < 1.0.19 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428 Firmware ≥ 2.30.0 and < 2.30.16≥ 2.40.0 and < 2.40.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428mp Firmware ≥ 6.20.0 and < 6.20.20≥ 6.30.0 and < 6.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428x Firmware ≥ 1.30.0 and < 1.30.17≥ 1.40.0 and < 1.40.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428x-m2 Firmware ≥ 1.20.0 and < 1.20.18 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428xf Firmware ≥ 1.20.0 and < 1.20.16≥ 1.30.0 and < 1.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428xmp Firmware ≥ 3.20.0 and < 3.20.21≥ 3.30.0 and < 3.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428xmpp Firmware ≥ 1.0.0 and < 1.0.16≥ 1.20.0 and < 1.20.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3428xpp-m2 Firmware ≥ 1.20.0 and < 1.20.19 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3452 Firmware ≥ 1.20.0 and < 1.20.17≥ 1.30.0 and < 1.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3452p Firmware ≥ 3.30.0 and < 3.30.17≥ 3.40.0 and < 3.40.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3452x Firmware ≥ 1.20.0 and < 1.20.18≥ 1.30.0 and < 1.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3452xmpp Firmware ≥ 1.0.0 and < 1.0.15 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sg3452xp Firmware ≥ 2.20.0 and < 2.20.20≥ 2.30.0 and < 2.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sl2428p Firmware ≥ 6.20.0 and < 6.20.18 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sx3008f Firmware ≥ 1.20.0 and < 1.20.12 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sx3016f Firmware ≥ 1.20.0 and < 1.20.16≥ 1.30.0 and < 1.30.1 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sx3032f Firmware ≥ 1.0.0 and < 1.0.15 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sx3206hpp Firmware ≥ 1.20.0 and < 1.20.12 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sx3832 Firmware ≥ 1.0.0 and < 1.0.12 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Sx3832mpp Firmware ≥ 1.0.0 and < 1.0.11 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Tl-sg2428p Firmware ≥ 4.0.0 and < 4.0.26 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Tl-sg3428mp Firmware ≥ 5.0.0 and < 5.0.25 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. Omada Tl-sg3452p Firmware ≥ 3.0.0 and < 3.0.22 Vulnerable NIST National Vulnerability Database
TP-Link Systems Inc. SG2005P-PD 1.x < 1.0.19 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2008 4.2x < 4.20.17 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2008 4.3x < 4.30.1 Build 20260127 Rel.32017 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2008P 3.2x < 3.20.17 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2008P 3.3x < 3.30.1 Build 20260127 Rel.32017 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2016P 1.2x < 1.20.17 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2016P 1.3x < 1.30.1 Build 20260127 Rel.32017 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2210MP 4.2x < 4.20.18 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2210MP 5.2x < 5.20.1 Build 20260127 Rel.32017 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2210MP 5.x < 5.0.15 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2210P 5.2x < 5.20.18 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2210P 5.3x < 5.30.1 Build 20260127 Rel.32017 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2210XMP-M2 1.x < 1.0.19 Build 20260121 Rel.53314 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2218 1.2x < 1.20.17 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2218 1.3x < 1.30.1 Build 20260127 Rel.32017 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2218P 1.2x < 1.20.17 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2218P 2.2x < 2.20.2 Build 20260127 Rel.32017 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2218P 2.x < 2.0.14 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2428LP 1.x < 1.0.15 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2428P 5.2x < 5.20.20 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2428P 5.3x < 5.30.16 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG2452LP 1.x < 1.0.13 Build 20260121 Rel.54132 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3210 3.2x < 3.20.17 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3210 3.3x < 3.30.1 Build 20260206 Rel.33103 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3210X-M2 1.2x < 1.20.1 Build 20260129 Rel.13605 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3210X-M2 1.x < 1.0.19 Build 20260121 Rel.53314 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3210XHP-M2 3.x < 3.0.21 Build 20260121 Rel.53314 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3218XP-M2 1.x < 1.0.19 Build 20260121 Rel.53314 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428 2.3x < 2.30.16 Build 20260113 Rel.67732 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428 2.4x < 2.40.1 Build 20260127 Rel.39545 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428MP 6.2x < 6.20.20 Build 20260113 Rel.67732 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428MP 6.3x < 6.30.1 Build 20260127 Rel.39545 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428X 1.3x < 1.30.17 Build 20260113 Rel.67732 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428X 1.4x < 1.40.1 Build 20260127 Rel.39545 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428X-M2 1.2x < 1.20.18 Build 20260121 Rel.54271 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428XF 1.2x < 1.20.16 Build 20260113 Rel.67732 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428XF 1.3x < 1.30.1 Build 20260127 Rel.39545 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428XMP 3.2x < 3.20.21 Build 20260113 Rel.67732 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428XMP 3.3x < 3.30.1 Build 20260127 Rel.39545 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428XMPP 1.2x < 1.20.1 Build 20260127 Rel.39545 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428XMPP 1.x < 1.0.16 Build 20260113 Rel.67732 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3428XPP-M2 1.2x < 1.20.19 Build 20260121 Rel.54271 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452 1.2x < 1.20.17 Build 20260121 Rel.54132 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452 1.3x < 1.30.1 Build 20260128 Rel.7041 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452P 3.3x < 3.30.17 Build 20260121 Rel.54132 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452P 3.4x < 3.40.1 Build 20260128 Rel.7041 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452X 1.2x < 1.20.18 Build 20260121 Rel.55833 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452X 1.3x < 1.30.1 Build 20260128 Rel.8721 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452XMPP 1.x < 1.0.15 Build 20260121 Rel.55833 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452XP 2.2x < 2.20.20 Build 20260121 Rel.55833 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SG3452XP 2.3x < 2.30.1 Build 20260128 Rel.8721 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SL2428P 6.2x < 6.20.18 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SX3016F 1.2x < 1.20.16 Build 20260121 Rel.57953 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SX3016F 1.3x < 1.30.1 Build 20260129 Rel.8831 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SX3032F 1.x < 1.0.15 Build 20260121 Rel.56907 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SX3832 1.x < 1.0.12 Build 20260121 Rel.56907 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. SX3832MPP 1.x < 1.0.11 Build 20260121 Rel.56907 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. TL-SG2428P 4.x < 4.0.26 Build 20260121 Rel.53429 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. TL-SG3428MP 5.x < 5.0.25 Build 20260113 Rel.67732 Vulnerable CVE Program (cve.org) e CISA ADP
TP-Link Systems Inc. TL-SG3452P 3.0 < 3.0.22 Build 20260121 Rel.54132 Vulnerable CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
7.7 CVSS 4.0 High — — f23511db-6c3e-4e32-a477-6aa17d310630 via NIST National Vulnerability Database
7.7 CVSS 4.0 High — — TPLink via CVE Program (cve.org) e CISA ADP
9.8 CVSS 3.1 Critical 3.9 5.9 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-787 · Out-of-bounds Write

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 1.02%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
  • Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.
web/proxy/WAF logsnetwork IDS/IPSendpoint telemetry (EDR)crash dumps

Timeline

What happened to this CVE, newest first.

  • 2026
  • Affected products added · tp-link systems inc./sg2008p 3.2x, tp-link systems inc./sg2008p 3.3x, tp-link systems inc./sx3016f 1.3x, tp-link systems
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • SSVC assessment updated
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 13, 2026
  • CVSS changed · 9.8
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Analyzed
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • CVE published
    Mar 13, 2026 · TPLink

Source activity

Repeated readings are counted rather than listed.

  • 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

4 on the record

Elsewhere on this site

TP-Link Systems Inc.
every CVE for this vendor
Memory corruption
same class
CWE-787
other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No fixed version, patch or mitigation documented.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-1668 is "Input Validation Vulnerability on Multiple Omada Switches", rated Critical. It affects Omada Sg2005p-pd Firmware (TP-Link Systems Inc.); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 9.8 describes technical severity. EPSS 1.02% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

Comments

Moderated technical discussion. Read the community guidelines.

No comments yet.

Sign in or create an account to comment and suggest corrections.