7.4
HIGH CVSS 3.1
CVE-2026-19980
GL.iNet XE3000 Language Update ui.update_langs code injection
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."

INFO

Published Date :

Aug. 17, 2026, 4:16 a.m.

Last Modified :

Aug. 17, 2026, 4:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-19980 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gl.inet a1300
2 Gl.inet mt6000
3 Gl.inet ax1800
4 Gl.inet x3000
5 Gl.inet mt2500
6 Gl.inet axt1800
7 Gl.inet xe3000
8 Gl.inet mt3000
9 Gl.inet e5800
10 Gl.inet be6500
11 Gl.inet mt3600be
12 Gl.inet be9300
13 Gl.inet mt5000
14 Gl.inet be3600
15 Gl.inet x2000
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 4.0 MEDIUM [email protected]
Solution
Update GL.iNet routers to version 4.8.x or later to fix code injection.
  • Update GL.iNet devices to version 4.8.x or later.
  • Apply the vendor-provided patch.
  • Reboot the affected devices.
  • Verify the update was successful.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-19980.

URL Resource
https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Language%20Auto-Update%20Cron%20RCE.md
https://vuldb.com/cve/CVE-2026-19980
https://vuldb.com/submit/873916
https://vuldb.com/vuln/391162
https://vuldb.com/vuln/391162/cti
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-19980 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-19980 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-6: Argument Injection Argument Injection CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-34: HTTP Response Splitting HTTP Response Splitting CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-51: Poison Web Service Registry Poison Web Service Registry CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-76: Manipulating Web Input to File System Calls Manipulating Web Input to File System Calls CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-83: XPath Injection XPath Injection CAPEC-84: XQuery Injection XQuery Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-105: HTTP Request Splitting HTTP Request Splitting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-250: XML Injection XML Injection CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-273: HTTP Response Smuggling HTTP Response Smuggling CAPEC-35: Leverage Executable Code in Non-Executable Files Leverage Executable Code in Non-Executable Files CAPEC-77: Manipulating User-Controlled Variables Manipulating User-Controlled Variables CAPEC-242: Code Injection Code Injection

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-19980 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-19980 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Aug. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:2.3:a:gl.inet:a1300:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'A1300', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:ax1800:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'AX1800', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:axt1800:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'AXT1800', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:be1400:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'BE1400', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:be3600:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'BE3600', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:be6500:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'BE6500', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:be9300:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'BE9300', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:be10000:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'BE10000', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:e5800:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'E5800', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:mt2500:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'MT2500', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:mt3000:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'MT3000', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:mt3600be:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'MT3600BE', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:mt5000:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'MT5000', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:mt6000:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'MT6000', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:x2000:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'X2000', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:x3000:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'X3000', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}, {'cpes': ['cpe:2.3:a:gl.inet:xe3000:*:*:*:*:*:*:*:*'], 'vendor': 'GL.iNet', 'modules': ['Language Update'], 'product': 'XE3000', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'affected', 'version': '4.1'}, {'status': 'affected', 'version': '4.2'}, {'status': 'affected', 'version': '4.3'}, {'status': 'affected', 'version': '4.4'}, {'status': 'affected', 'version': '4.5'}, {'status': 'affected', 'version': '4.6'}, {'status': 'affected', 'version': '4.7'}, {'status': 'affected', 'version': '4.8'}]}]
    Added 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."
    Added CVSS V4.0 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
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
    Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CWE CWE-94
    Added CWE CWE-74
    Added Reference https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Language%20Auto-Update%20Cron%20RCE.md
    Added Reference https://vuldb.com/cve/CVE-2026-19980
    Added Reference https://vuldb.com/submit/873916
    Added Reference https://vuldb.com/vuln/391162
    Added Reference https://vuldb.com/vuln/391162/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.