CVE-2026-19980

GL.iNet XE3000 Language Update ui.update_langs code injection

Medium5.3EPSS 0.39%

Published: 17 Aug 2026
Updated: 19 Aug 2026
Reserved: 16 Aug 2026
Assigned by: VulDB

Description

A security flaw has been discovered 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 issue is the function ui.update_langs of the component Language Update. Performing a manipulation of the argument hour/min/week results in code injection. The attack can be initiated remotely. The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."

Scores

CVSS scores of CVE-2026-19980, by who scored it
Scored by	CVSS	Score	Vector
VulDBCNA (assigner)	4.0	Medium5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X
VulDBCNA (assigner)	3.1	High7.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:X/RL:X/RC:R
VulDBCNA (assigner)	3.0	High7.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:X/RL:X/RC:R
VulDBCNA (assigner)	2.0	Medium6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:UR
NVDNVD · Deferred	4.0	Medium5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS (exploitation in 30 days): 0.39% · top 66% of all CVEs (6 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

GL.iNet · A1300
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · AX1800
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · AXT1800
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · BE1400
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · BE3600
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · BE6500
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · BE9300
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · BE10000
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · E5800
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · MT2500
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · MT3000
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · MT3600BE
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · MT5000
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · MT6000
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · X2000
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · X3000
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8
GL.iNet · XE3000
- affected 4.0
- affected 4.1
- affected 4.2
- affected 4.3
- affected 4.4
- affected 4.5
- affected 4.6
- affected 4.7
- affected 4.8

References (5)

VDB-391162 | GL.iNet XE3000 Language Update ui.update_langs code injection (opens in a new tab)vdb-entrytechnical-description
VDB-391162 | CTI Indicators (IOB, IOC, TTP, IOA) (opens in a new tab)signaturepermissions-required
CVE-2026-19980 | CVE Analysis and Report (opens in a new tab)third-party-advisory
Submit #873916 | GL.iNet Router 4.8.x RCE (opens in a new tab)third-party-advisory
https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Language%20Auto-Update%20Cron%20RCE.md (opens in a new tab)patch

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2026-19980](https://trackcve.app/badge/CVE-2026-19980.svg)](https://trackcve.app/cve/CVE-2026-19980)

Record last updated 19 Aug 2026, 14:51 UTC.