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    CVE-2026-19980

    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."

    Published:Aug 17, 2026
    Last Modified:Aug 19, 2026
    EPS:Aug 17, 2026
    EPSS Score:0.00228
    CVSS Score:7.4

    Affected Products

    Vendor
    Gl-inet
    Product
    A1300
    Vendor
    Gl-inet
    Product
    Ax1800
    Vendor
    Gl-inet
    Product
    Axt1800
    Vendor
    Gl-inet
    Product
    Be3600
    Vendor
    Gl-inet
    Product
    Be6500
    Vendor
    Gl-inet
    Product
    Be9300
    Vendor
    Gl-inet
    Product
    E5800
    Vendor
    Gl-inet
    Product
    Mt2500
    Vendor
    Gl-inet
    Product
    Mt3000
    Vendor
    Gl-inet
    Product
    Mt3600be
    Vendor
    Gl-inet
    Product
    Mt5000
    Vendor
    Gl-inet
    Product
    Mt6000
    Vendor
    Gl-inet
    Product
    X2000
    Vendor
    Gl-inet
    Product
    X3000
    Vendor
    Gl-inet
    Product
    Xe3000
    Vendor
    Gl.inet
    Product
    A1300
    Vendor
    Gl.inet
    Product
    Ax1800
    Vendor
    Gl.inet
    Product
    Axt1800
    Vendor
    Gl.inet
    Product
    Be10000
    Vendor
    Gl.inet
    Product
    Be1400
    Vendor
    Gl.inet
    Product
    Be3600
    Vendor
    Gl.inet
    Product
    Be6500
    Vendor
    Gl.inet
    Product
    Be9300
    Vendor
    Gl.inet
    Product
    E5800
    Vendor
    Gl.inet
    Product
    Mt2500
    Vendor
    Gl.inet
    Product
    Mt3000
    Vendor
    Gl.inet
    Product
    Mt3600be
    Vendor
    Gl.inet
    Product
    Mt5000
    Vendor
    Gl.inet
    Product
    Mt6000
    Vendor
    Gl.inet
    Product
    X2000
    Vendor
    Gl.inet
    Product
    X3000
    Vendor
    Gl.inet
    Product
    Xe3000

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

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

    Related CVEs

    CVE-2026-19983 (CVSS 6.9) — A vulnerability was detected in GL.iNet A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000 and XE3000 4.8.x…
    CVE-2026-19981 (CVSS 5.3) — A weakness has been identified in GL.iNet A1300, AX1800, AXT1800, BE1400, BE3600, BE6500, BE9300, BE10000, E58…
    CVE-2026-19979 (CVSS 6.9) — A vulnerability was identified in GL.iNet A1300, AX1800, AXT1800, BE1400, BE3600, BE6500, BE9300, BE10000, E58…
    CVE-2026-11505 (CVSS 2.3) — A flaw has been found in GL.iNet A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000 and XE3000 4.8.x. This …
    CVE-2024-45262 (CVSS 8.8) — An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500, AXT1800, and AX1800 4.6.…
    CVE-2024-45261 (CVSS 8) — An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500, AXT1800, and AX1800 4.6.…
    CVE-2024-45263 (CVSS 8.8) — An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500, AXT1800, and AX1800 4.6.…
    CVE-2024-45259 (CVSS 6.5) — An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500, AXT1800, and AX1800 4.6.…
    CVE-2024-45260 (CVSS 8) — An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500, AXT1800, and AX1800 4.6.…
    CVE-2024-28077 (CVSS 7.5) — A denial-of-service issue was discovered on certain GL-iNet devices. Some websites can detect devices exposed …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High