CVE-2009-1561

Wrt54gc vulnerability

CVSS

6.8

EPSS

3.4%

EPSS pct

87th

Exploited

No known

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.

Affected vendor

Cisco

Affected product

Wrt54gc

CVSS vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Weakness type (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Published

2009-05-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 3.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2009-1561

Confirm whether Cisco Wrt54gc is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-1561.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-1561

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-1561 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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