CVE-2026-116508

TOTOLINK A950RG Device-Information CGI infostat.cgi sub_402340 stack-based overflow

Critical 10.0
A public exploit reference is listed

Description

A security flaw has been discovered in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this issue is the function sub_402340 of the file infostat.cgi of the component Device-Information CGI. Performing a manipulation of the argument CONTENT_LENGTH results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

Key facts

Published: 26 Oct 2026
Last changed: 31 Oct 2026
Assigned by: VulDB
EPSS: 0.609% likely to be exploited in the next 30 days, higher than 49.734% of CVEs (scores for 15 Nov 2026)
SSVC (CISA): Exploitation: poc; Automatable: yes; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

10.0CVSS 4.0, Criticalfrom the CNA (VulDB)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
10.0CVSS 3.1, Criticalfrom the CNA (VulDB)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
10.0CVSS 3.0, Criticalfrom the CNA (VulDB)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
10.0CVSS 2.0, Highfrom the CNA (VulDB)AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Vendor	Product	Versions
TOTOLINK	A950RG	4.1.2cu.5268_B20221104 (affected)

Timeline

26 Oct 2026 Advisory disclosed
26 Oct 2026 VulDB entry created
26 Oct 2026 VulDB entry last update
26 Oct 2026 Published

Weakness

References

VDB-426406 | TOTOLINK A950RG Device-Information CGI infostat.cgi sub_402340 stack-based overflowvdb-entrytechnical-description
VDB-426406 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-116508 | CVE Analysis and Reportthird-party-advisory
Submit #1022557 | TOTOLINK A950RG V4.1.2cu.5268_B20221104 Stack Buffer Overflowthird-party-advisory
gist.github.comexploit
www.totolink.netproduct