Tenda W3002R/A302/W309R V5.07.64_en Cookie Session Weakness DNS Change (CVE-2018-25317) | HOL Guard CVE

Critical · CVSS 9.3CVE-2018-25317

Tenda W3002R/A302/W309R V5.07.64_en Cookie Session Weakness DNS Change

Answer in brief

CVE-2018-25317 records a Critical severity (CVSS 9.3) vulnerability in Tenda W3002R/A302/W309R V5.07.64_en Cookie Session Weakness DNS Change. The current sources do not mark it as known exploited. The current feed maps Tenda/A302 (generic), Tenda/W3002R (generic), Tenda/W309R (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 Apr 29, 2026Updated Sep 30, 2026Source checked Sep 30, 2026First seen by HOL Sep 30, 2026Material review Sep 30, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.3
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 9.3. 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 Tenda/A302 (generic), Tenda/W3002R (generic), Tenda/W309R (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Tenda/A302generic	5.07.64	Not reported
Tenda/W3002Rgeneric	5.07.64	Not reported
Tenda/W309Rgeneric	5.07.64	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Tenda/A302, Tenda/W3002R, Tenda/W309R.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Apr 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 30, 2026

Sources and claim methodology

Upstream source description

Tenda W3002R/A302/W309R wireless routers version V5.07.64_en contain a cookie session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient session validation. Attackers can send GET requests to the /goform/AdvSetDns endpoint with a crafted admin language cookie to change primary and secondary DNS servers, redirecting user traffic to malicious DNS servers.

Quoted source text, attributed separately from HOL analysis.