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  4. CVE 2026 85031 totolink cp450 cstecgicgi buffer overflow
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Back to active CVEs
Critical · CVSS 9.9CVE-2026-85031

TOTOLINK CP450 cstecgi.cgi buffer overflowCVE-2026-85031

Answer in brief

CVE-2026-85031 records a Critical severity (CVSS 9.9) vulnerability in TOTOLINK CP450 cstecgi.cgi buffer overflow. The current sources do not mark it as known exploited. The current feed maps TOTOLINK/CP450 (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 Sep 3, 2026Updated Sep 3, 2026Source checked Oct 18, 2026First seen by HOL Sep 3, 2026Material review Sep 3, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.9
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 9.9. 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/CP450 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
TOTOLINK/CP450generic4.1.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for TOTOLINK/CP450.
  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

    Sep 3, 2026

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

  2. Source modified

    Sep 3, 2026

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

  3. First seen by HOL

    Sep 3, 2026

Sources and claim methodology

  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencetotolink.net
Upstream source description

A vulnerability was found in TOTOLINK CP450 4.1.0. The impacted element is an unknown function of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument topicurl results in buffer overflow. Remote exploitation of the attack is possible.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-120, CWE-119
Source
CVE List V5
Source checked
Oct 18, 2026
References
5 linked sources
Open source record