How severe is CVE-2009-1561?

CVE-2009-1561 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2009-1561 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1561?

CVE-2009-1561 affects Cisco Wrt54gc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1561?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-1561 published?

CVE-2009-1561 was published on 2009-05-06 and last updated on 2026-06-16.

CVE-2009-1561

CVE-2009-1561 is a medium-severity vulnerability in Cisco Wrt54gc with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Cisco Wrt54gc
Published: 2009-05-06
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2009-1561?: 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.
How severe is CVE-2009-1561?: CVE-2009-1561 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2009-1561 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1561?: CVE-2009-1561 affects Cisco Wrt54gc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1561?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1561 published?: CVE-2009-1561 was published on 2009-05-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:h:cisco:wrt54gc:1.05.7:*:*:*:*:*:*:*

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