Is there a public exploit for CVE-2026-129258?

No public exploit for CVE-2026-129258 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-129258?

CVE-2026-129258 scores CVSS 9.4 (v4.0), rated critical.

What does CVE-2026-129258 affect?

CVE-2026-129258 affects Tenda AC18.

9.4 Critical

A vulnerability was identified in Tenda AC18 15.03.05.05multi/15.03.05.19 Build 6318.

CVE-2026-129258

A vulnerability was identified in Tenda AC18 15.03.05.05multi/15.03.05.19 Build 6318. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/upgrade of the component Firmware Upgrade Handler. Such manipulation of the argument upgradeFile leads to insufficient verification of data authenticity. The attack may be launched remotely. The exploit is publicly available and might be used.

Assessment

CVSS: 9.4 (v4.0)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 14 November 2026
Last updated: 14 November 2026
Affected: Tenda · AC18
Assigner: VulDB

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

At the source

EUVD (ENISA)

References

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