CVE•Published 2026-04-29•Modified 2026-09-30•1 article on news•7 live references•NVD data
CVE-2018-25317Tenda · W309r_firmware
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
50
Exploit Prediction Scoring System · top 50% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-04-29
Modified 2026-09-30
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2018-25317Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"W309r Firmware"Hosts Shodan identified as running W309r Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2018-25317Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2018-25317Censys host search filtered to this CVE id.
grep.app
CVE-2018-25317Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2018-25317GitHub code search for direct mentions.
Google dork
"CVE-2018-25317" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2018-25317 on GitHub.