CVE-2026-11493: Tenda AC15 weak password requirements in Samba configuration

CVE-2026-11493 · Severity: medium · CVSS 5 · Published 2026-06-08

A security vulnerability has been identified in the Tenda AC15 router, a device used to provide wireless internet in homes and small offices. The flaw affects the Samba component, which is responsible for file sharing across a network. If exploited, this could allow an attacker on the local network to bypass or weaken password requirements, potentially gaining unauthorized access to shared files or the device itself.

Technologies: Tenda AC15. Vendors: Tenda.

Quick answers

Is CVE-2026-11493 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-11493 being exploited in the wild.
How severe is CVE-2026-11493?
Medium severity, with a CVSS score of 5, published 8 June 2026.
Which products and versions are affected?
Tenda AC15 15.03.05.19.
Is there a fix for CVE-2026-11493?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-11493 attacked?
It is attacked from the adjacent network, in an operating system.
Am I affected by CVE-2026-11493?
Check whether you run Tenda AC15 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A vulnerability (CWE-521) exists in the Tenda AC15 router (firmware 15.03.05.19) within the Samba component's configuration file (/etc_ro/smb.conf). The flaw stems from an unknown function that, when manipulated, results in weak password requirements for the service. The attack vector is restricted to the adjacent network (local network), and the exploit is considered high complexity due to the specific conditions required for successful manipulation. An attacker could potentially leverage this to gain unauthorized access to network shares. Public exploit code is reportedly available.

Affected products

  • Tenda AC15 15.03.05.19

Timeline

  • 2026-06-08: disclosed: Initial disclosure via VulDB and NVD

References

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