CVE-2026-31255
criticalA command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi.
Vendor / product: Tenda — ac18 firmware
A command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the /goform/SetSambaCfg interface, where improper handling of the guestuser parameter allows attackers to execute arbitrary system commands.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-04-27 19:16
Modified: 2026-11-11 19:10
NVD status: Modified
Last synced 7 hours ago
Verified against the source API 2026-11-11 19:10 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
tenda / ac18_firmware 15.03.05.05
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/Tenda_AC18/Tenda_AC18_3t... cve@mitre.org
- https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/Tenda_AC18/Tenda_AC18_3t... 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 19:10 UTC · record ↗