CVE-2004-1464
Summary
| CVE | CVE-2004-1464 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2004-12-31 05:00:00 UTC |
| Updated | 2026-04-16 14:03:22 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 5.9 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.024110000 probability, percentile 0.851440000 (date 2026-04-23)
CISA KEV: Listed on 2023-05-19; due 2023-06-09; ransomware use Unknown
Problem Types: CWE-400 | n/a | CWE-400 CWE-400 Uncontrolled Resource Consumption
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | ADP | DECLARED | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:N/C:N/I:N/A:P
CISA Known Exploited Vulnerability
| Vendor | Cisco |
|---|---|
| Product | IOS |
| Name | Cisco IOS Denial-of-Service Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20040827-telnet; https://nvd.nist.gov/vuln/detail/CVE-2004-1464 |
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Cisco - Networking, Cloud, and Cybersecurity Solutions | af854a3a-2127-422b-91ae-364da2661108 | www.cisco.com | Not Applicable, Vendor Advisory |
| Cisco IOS Telnet and Reverse Telnet TCP Bug Lets Remote Users Deny Subsequent Management Terminal Connections - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | securitytracker.com | Broken Link, Third Party Advisory, VDB Entry |
| VU#384230 - Cisco IOS fails to properly handle telnet connections | af854a3a-2127-422b-91ae-364da2661108 | www.kb.cert.org | Patch, Third Party Advisory, US Government Resource |
| www.cisa.gov/known-exploited-vulnerabilities-catalog | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | www.cisa.gov | US Government Resource |
| Cisco IOS Telnet Service Remote Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Broken Link, Third Party Advisory, VDB Entry |
| Secunia - Advisories - Cisco IOS Telnet Service Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Broken Link, Vendor Advisory |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | Third Party Advisory, VDB Entry |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| ADP | 2023-05-19T00:00:00.000Z | CVE-2004-1464 added to CISA KEV |
There are currently no legacy QID mappings associated with this CVE.