CVE Intelligence
High Authentication exploit reference

CVE-2025-15371 — Tenda i24 Shadow File hard-coded credentials

A vulnerability has been found in Tenda i24, 4G03 Pro, 4G05, 4G08, G0-8G-PoE, Nova MW5G and TEG5328F up to 65.10.15.6. Affected is an unknown function of the component Shadow File. Such manipulation with the input Fireitup leads to hard-coded credentials. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

Published Dec 30, 2025 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: VulDB

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 0.1% (30-day exploitation probability)+0
  • Technical severity (high)+6

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
0.14%
ahead of 3% of scored CVEs · Oct 14, 2026
Affects
Tenda
4G03 Pro and 6 more
CVSS base
7.8
High · 2 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 (Tenda 4G03 Pro, Tenda 4G05, Tenda 4G08…).
  2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  3. Search available logs for exploit probes matching the vulnerability class (authentication), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Tenda 4G03 Pro version 1.0.0.35version 3.0.0.8(4008)version 04.03.01.49version 04.05.01.15version 04.08.01.28version 16.01.8.5version 65.10.15.6 Vulnerable CVE Program (cve.org) e CISA ADP
Tenda 4G05 version 65.10.15.6version 16.01.8.5version 04.08.01.28version 04.05.01.15version 04.03.01.49version 3.0.0.8(4008)version 1.0.0.35 Vulnerable CVE Program (cve.org) e CISA ADP
Tenda 4G08 version 1.0.0.35version 3.0.0.8(4008)version 04.03.01.49version 04.05.01.15version 04.08.01.28version 16.01.8.5version 65.10.15.6 Vulnerable CVE Program (cve.org) e CISA ADP
Tenda G0-8G-PoE version 1.0.0.35version 3.0.0.8(4008)version 04.03.01.49version 04.05.01.15version 04.08.01.28version 16.01.8.5version 65.10.15.6 Vulnerable CVE Program (cve.org) e CISA ADP
Tenda I24 version 3.0.0.8(4008)version 16.01.8.5version 04.08.01.28version 04.05.01.15version 04.03.01.49version 1.0.0.35version 65.10.15.6 Vulnerable CVE Program (cve.org) e CISA ADP
Tenda Nova MW5G version 04.08.01.28version 65.10.15.6version 16.01.8.5version 04.05.01.15version 04.03.01.49version 3.0.0.8(4008)version 1.0.0.35 Vulnerable CVE Program (cve.org) e CISA ADP
Tenda TEG5328F version 1.0.0.35version 3.0.0.8(4008)version 04.03.01.49version 04.05.01.15version 04.08.01.28version 16.01.8.5version 65.10.15.6 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
Local
Attack complexity
Low
Privileges required
Low
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
8.5 CVSS 4.0 High — — VulDB via CVE Program (cve.org) e CISA ADP
7.1 CVSS 4.0 High — — cna@vuldb.com via NIST National Vulnerability Database
7.8 CVSS 3.1 High 1.8 5.9 cna@vuldb.com via NIST National Vulnerability Database
7.8 CVSS 3.1 High — — VulDB via CVE Program (cve.org) e CISA ADP
7.8 CVSS 3.0 High — — VulDB via CVE Program (cve.org) e CISA ADP
6.8 CVSS 2.0 Medium 3.1 10.0 cna@vuldb.com via NIST National Vulnerability Database
6.8 CVSS 2.0 Medium — — VulDB via CVE Program (cve.org) e CISA ADP
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (score shown at the top: cna@vuldb.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-259 · Use of Hard-coded Password

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.14%

Detection

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

  • Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
  • Review authentication logs: logins without MFA, anomalous sessions and recently created accounts.
endpoint telemetry (EDR)authentication logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • Affected products added · tenda/i24, tenda/4g03 pro, tenda/4g05, tenda/4g08, tenda/g0-8g-poe, tenda/nova mw5g, tenda/teg5328f
    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 · 7.8
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Deferred
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • 2025
  • CVE published
    Dec 30, 2025 · VulDB

Source activity

Repeated readings are counted rather than listed.

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

References

11 on the record

Elsewhere on this site

Tenda
every CVE for this vendor
Authentication
same class
CWE-259
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-5527 Tenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key Apr 4, 2026
  • CVE-2026-5526 Tenda 4G03 Pro httpd access control Apr 4, 2026

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-2025-15371 is "Tenda i24 Shadow File hard-coded credentials", rated High. It affects 4G03 Pro (Tenda); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.8 describes technical severity. EPSS 0.14% 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.

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