Is CVE-2026-82695 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82695 being exploited in the wild.

How severe is CVE-2026-82695?

Critical severity, with a CVSS score of 10, published 31 August 2026.

Is there a fix for CVE-2026-82695?

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-2026-82695 attacked?

It is attacked over the network.

Am I affected by CVE-2026-82695?

Check whether you run Tenda AC18 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.

CVE-2026-82695: Tenda AC18 authentication bypass in telnet handler

CVE-2026-82695 · Severity: critical · CVSS 10 · Published 2026-08-31

The Tenda AC18 wireless router contains an unauthenticated endpoint that enables telnet access. The router's factory-default configuration has an empty admin password, allowing an attacker on the network to remotely enable telnet without any credentials and gain command-line access to the device's management shell, potentially compromising the entire network infrastructure.

Technologies: Tenda AC18. Vendors: Tenda.

Quick answers

Is CVE-2026-82695 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82695 being exploited in the wild.
How severe is CVE-2026-82695?: Critical severity, with a CVSS score of 10, published 31 August 2026.
Which products and versions are affected?: Tenda AC18 15.03.05.19.
Is there a fix for CVE-2026-82695?: 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-2026-82695 attacked?: It is attacked over the network.
Am I affected by CVE-2026-82695?: Check whether you run Tenda AC18 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

The vulnerability is a missing authentication check (CWE-306) in the /goform/telnet HTTP handler within /bin/httpd. The default firmware configuration sets an empty sys.userpass value, and the telnet handler does not validate authentication before processing requests to enable telnetd. An unauthenticated, unauthenticated HTTP GET request to /goform/telnet triggers shell commands that start telnetd listening on the LAN IP without any login step, Cookie, or Authorization header required. This is a network-reachable pre-authentication vulnerability; an attacker can exploit it remotely from any network interface the router exposes. Once telnet is enabled, the attacker gains unauthenticated shell access to execute arbitrary commands on the device with root privileges.

Affected products

Tenda AC18 15.03.05.19

Timeline

2026-08-31: disclosed
exploited: Public exploit released

References

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