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  4. CVE 2026 121598 totolink a950rg basic wireless configuration
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Back to active CVEs
Critical · CVSS 9.4CVE-2026-121598

TOTOLINK A950RG Basic Wireless Configuration cstecgi.cgi strcpy stack-based overflowCVE-2026-121598

Answer in brief

CVE-2026-121598 records a Critical severity (CVSS 9.4) vulnerability in TOTOLINK A950RG Basic Wireless Configuration cstecgi.cgi strcpy stack-based overflow. The current sources do not mark it as known exploited. The current feed maps TOTOLINK/A950RG (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 4, 2026Updated Nov 4, 2026Source checked Nov 4, 2026First seen by HOL Nov 4, 2026Material review Nov 4, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.4
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TOTOLINK/A950RG (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
TOTOLINK/A950RGgeneric4.1.2cu.5268_B20221104Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for TOTOLINK/A950RG.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 4, 2026

Sources and claim methodology

  • GitHub security advisorygist.github.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencetotolink.net
Upstream source description

A security vulnerability has been detected in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This impacts the function strcpy of the file /cgi-bin/cstecgi.cgi of the component Basic Wireless Configuration Handler. The manipulation of the argument wepkey leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • TOTOLINK A950RG Easy Setup Wizard cstecgi.cgi setAppEasyWizardConfig stack-based overflowSame totolink/a950rg package
  • TOTOLINK A950RG Multi-SSID Configuration cstecgi.cgi delWiFiMultipleConfig stack-based overflowSame totolink/a950rg package
  • TOTOLINK A950RG MAC Filter cstecgi.cgi setMacFilterRules stack-based overflowSame totolink/a950rg package

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-121, CWE-119
Source
CVE List V5
Source checked
Nov 4, 2026
References
6 linked sources
Open source record