May 19, 2023 · Applied Cybernetics Group
CVE-2004-1464 — Cisco IOS
Cisco IOS Denial-of-Service Vulnerability
- Added to KEV
2023-05-19- Federal due date
2023-06-09- Vendor
- Cisco
- Product
- IOS
- EPSS
- 91.4th percentile (score 0.051, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2004-1464
CISA short description
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.
Required action
Apply updates per vendor instructions.