What is CVE-2026-116506?

CVE-2026-116506 is a critical-severity vulnerability in Totolink A950rg, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.9/10. Published 2026-10-26.

How severe is CVE-2026-116506?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Totolink A950rg

CVE-2026-116506

A vulnerability was determined in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected is the function apmib_set of the file firewall.so. This manipulation causes command injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Published 2026-10-26.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Totolink A950rg — versions 4.1.2cu.5268_B20221104

Weakness classification (CWE)

References

gist.github.com/H3rmesk1t/1046036a8601e93f375754e11307bfc8 (exploit)
vuldb.com/cve/CVE-2026-116506 (third-party-advisory)
vuldb.com/submit/1022555 (third-party-advisory)
vuldb.com/vuln/426404 (technical-description, vdb-entry)
vuldb.com/vuln/426404/cti (signature, permissions-required)
www.totolink.net/ (product)

Frequently asked questions

What is CVE-2026-116506?: CVE-2026-116506 is a critical-severity vulnerability in Totolink A950rg, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.9/10. Published 2026-10-26.
How severe is CVE-2026-116506?: Critical severity. CVSS v3 base score is 9.9 out of 10.