High Access control

CVE-2026-19979 — GL.iNet XE3000 WebDAV Service MOVE authorization

A vulnerability was identified in GL.iNet A1300, AX1800, AXT1800, BE1400, BE3600, BE6500, BE9300, BE10000, E5800, MT2500, MT3000, MT3600BE, MT5000, MT6000, X2000, X3000 and XE3000 up to 4.8.x. Affected by this vulnerability is the function COPY/MOVE of the component WebDAV Service. Such manipulation leads to authorization bypass. It is possible to launch the attack remotely. The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."

Published Aug 17, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: VulDB

Low

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

Technical severity (high)+6
Automatable exploitation (SSVC)+3

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

—

No EPSS score.

Affects

GL.iNet

A1300 and 16 more

CVSS base

8.3

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

Yes

can an attacker script the kill-chain steps

Technical impact

Partial

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.

Identify exposed assets running the affected vendor/product/version combinations (GL.iNet A1300, GL.iNet AX1800, GL.iNet AXT1800…).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
GL.iNet	A1300	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	AX1800	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	AXT1800	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	BE10000	version 4.8version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6 and 1 more version 4.7	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	BE1400	version 4.1version 4.8version 4.7version 4.6version 4.5version 4.4version 4.3version 4.2 and 1 more version 4.0	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	BE3600	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	BE6500	version 4.0version 4.1version 4.3version 4.2version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	BE9300	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	E5800	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	MT2500	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	MT3000	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	MT3600BE	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	MT5000	version 4.2version 4.1version 4.0version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	MT6000	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	X2000	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	X3000	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP
GL.iNet	XE3000	version 4.0version 4.1version 4.2version 4.3version 4.4version 4.5version 4.6version 4.7 and 1 more version 4.8	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

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Every base score collected

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

Score	Version	Severity	Expl.	Impact	Scored by
6.9	CVSS 4.0	Medium	—	—	cna@vuldb.com via NIST National Vulnerability Database
6.9	CVSS 4.0	Medium	—	—	VulDB via CVE Program (cve.org) e CISA ADP
8.3	CVSS 3.1	High	3.9	3.7	cna@vuldb.com via NIST National Vulnerability Database
8.3	CVSS 3.1	High	—	—	VulDB via CVE Program (cve.org) e CISA ADP
8.3	CVSS 3.0	High	—	—	VulDB via CVE Program (cve.org) e CISA ADP
7.5	CVSS 2.0	High	10.0	6.4	cna@vuldb.com via NIST National Vulnerability Database
7.5	CVSS 2.0	High	—	—	VulDB via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L (score shown at the top: cna@vuldb.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-285 · Improper Authorization

Other CVEs with this weakness →

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).
Audit administrative actions and access to resources outside each user’s normal pattern.

web/proxy/WAF logsnetwork IDS/IPSauthentication logsapplication logs

Timeline

What happened to this CVE, newest first.

2026
Affected products added · gl.inet/a1300, gl.inet/ax1800, gl.inet/axt1800, gl.inet/be1400, gl.inet/be3600, gl.inet/be6500, gl.inet/be9300, gl.inet/
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 15, 2026
CVSS changed · 8.3
Oct 15, 2026 · NIST National Vulnerability Database
Source status changed · → Deferred
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Aug 17, 2026 · VulDB

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

5 on the record

github.com/gl-inet/CVE-issues/blob/main/4.0.0/WebDAV%20Public-Share%20Destinatio
related, NIST National Vulnerability Database
vuldb.com/vuln/391161/cti
signature, permissions-required, NIST National Vulnerability Database
vuldb.com/submit/873915
third-party-advisory, NIST National Vulnerability Database
vuldb.com/vuln/391161
vdb-entry, technical-description, NIST National Vulnerability Database
vuldb.com/cve/CVE-2026-19979
third-party-advisory, NIST National Vulnerability Database

Elsewhere on this site

GL.iNet
every CVE for this vendor

Access control
same class

CWE-285
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-19983 GL.iNet XE3000 NAS Command Service gl_nas_sys os command injection Aug 17, 2026
High CVE-2026-19982 GL.iNet BE9300/MT6000 Firewall-management RPC os command injection Aug 17, 2026
High CVE-2026-19980 GL.iNet XE3000 Language Update ui.update_langs code injection Aug 17, 2026
High CVE-2026-19981 GL.iNet XE3000 Wi-Fi Timer Power-Schedule Feature os command injection Aug 17, 2026
High CVE-2026-18787 GL.iNet AX1800 RPC Endpoint oui-rpc.lua remove_rule command injection Aug 4, 2026
Medium CVE-2026-18585 GL.iNet MT2500 APPS-NAS nas-web.get_file_list heap-based overflow Aug 3, 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 FIRST EPSS score.
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-2026-19979 is "GL.iNet XE3000 WebDAV Service MOVE authorization", rated High. It affects A1300 (GL.iNet); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 8.3 describes technical severity. 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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