CVE-2004-1464

criticalknown exploitedcovered by 1 sourcefirst seen 2023-05-19

Actively exploited. CVE-2004-1464 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-05-19) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.

Cisco IOS contains an unspecified vulnerability that may block further telnet, reverse telnet, Remote Shell (RSH), Secure Shell (SSH), and in some cases, Hypertext Transport Protocol (HTTP) access to the Cisco device.

CSIRTS triage

What: There is an unspecified vulnerability that may block further access to the Cisco device via various protocols.
Who is affected: Deployments of Cisco IOS are affected.
Urgency: Remediation is urgent due to the critical severity and confirmed exploitation.
Action: Users should apply the latest patches for Cisco IOS.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 91% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalexploitedCVE-2004-1464: Cisco IOS Denial-of-Service Vulnerabilitycisa-kev · 2023-05-19

External references

NVD record for CVE-2004-1464

CVE.org record

CISA KEV catalog

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