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Fencer Vulns
medium 6.8

CVE-2009-1561 json

Cross-site request forgery (CSRF) vulnerability in administration.cgi on the Cisco Linksys WRT54GC router with firmware 1.05.7 allows remot…

published 2009-05-06 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1557

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
1
Exploit-DB

Summary

Cross-site request forgery (CSRF) vulnerability in administration.cgi on the Cisco Linksys WRT54GC router with firmware 1.05.7 allows remote attackers to hijack the intranet connectivity of arbitrary users for requests that change the administrator password via the sysPasswd and sysConfirmPasswd parameters.

Timeline

  1. First public exploit (EDB-32931)
  2. Published

Exploit prediction

3.36% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-32931 Linksys WRT54GC 1.5.7 Firmware - 'administration.cgi' Access Validation remote, 2009-04-20
  • packetstormsecurity.org http://packetstormsecurity.org/0904-exploits/linksysadmin-passwd.txt referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/34616 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.