Resource exhaustion in Cisco Ios

CVE-2004-1464

Cisco IOS 12.2(15) and earlier allows remote attackers to cause a denial of service (refused VTY (virtual terminal) connections), via a crafted TCP connection to the Telnet or reverse Telnet port.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.051 (91.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_XF)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
  • cve@mitre.org (US Government Resource, x_refsource_CERT-VN, Patch, Third Party Advisory, third-party-advisory)
  • cve@mitre.org (x_refsource_SECUNIA, Broken Link, Vendor Advisory, third-party-advisory)
  • cve@mitre.org (x_refsource_CISCO, vendor-advisory, Not Applicable, Vendor Advisory)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2004-1464?
CVE-2004-1464 is a medium-severity vulnerability in Cisco Ios, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2004-12-31.
How severe is CVE-2004-1464?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2004-1464 known to be exploited?
Yes. CVE-2004-1464 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-05-19), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.