Is CVE-2026-116506 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-116506 being exploited in the wild.

How severe is CVE-2026-116506?

Critical severity, with a CVSS score of 9.9, published 26 October 2026.

Which products and versions are affected?

TOTOLINK A950rg 4.1.2cu.5268_B20221104.

Is there a fix for CVE-2026-116506?

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-2026-116506 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-116506?

Check whether you run TOTOLINK A950rg 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-2026-116506: TOTOLINK A950RG command injection in firewall.so

CVE-2026-116506 · Severity: critical · CVSS 9.9 · Published 2026-10-26

TOTOLINK A950RG is a dual-band WiFi router used in home and small office networks. The device contains a two-stage command injection vulnerability where configuration parameters stored by web handlers are later interpreted as shell commands by a system utility running with root privileges. An attacker with network access can inject arbitrary commands that execute as root, potentially gaining full control of the router and any networks it protects.

Technologies: TOTOLINK A950rg. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-116506 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-116506 being exploited in the wild.
How severe is CVE-2026-116506?: Critical severity, with a CVSS score of 9.9, published 26 October 2026.
Which products and versions are affected?: TOTOLINK A950rg 4.1.2cu.5268_B20221104.
Is there a fix for CVE-2026-116506?: 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-2026-116506 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-116506?: Check whether you run TOTOLINK A950rg 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 stored command injection (CWE-78) in the CSTE framework's separation of concerns: the web handler firewall.so stores unfiltered rule text via apmib_set() into the MIB configuration store, and the standalone bin/sysconf binary later interpolates these values into shell command templates without sanitization. An authenticated attacker with LAN access (or unauthenticated access if combined with pre-authentication bypasses) can craft malicious rule text containing shell metacharacters or line feeds to break out of command templates and execute arbitrary code as root.

Affected products

TOTOLINK A950RG 4.1.2cu.5268_B20221104

Timeline

2026-10-10: disclosed: Publicly disclosed on GitHub
2026-10-26: advisory

References

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