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CVE-2003-1398

28
FAUCET Score

CVE-2003-1398 describes a denial-of-service vulnerability in Cisco IOS versions 12.0 through 12.2. When IP routing is disabled, affected devices can be tricked by false ICMP redirect messages, leading to network routing modifications. This vulnerability carries a critical CVSS score of 9.3, indicating a high-impact attack that can be executed remotely with moderate complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the CVE has garnered significant community discussion, with 10 mentions, primarily on GitHub.

Impacted Technologies

VendorProductVersion(s)CPE
12.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*
12.0sCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:*
12.0stCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0st:*:*:*:*:*:*:*
12.0tCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0t:*:*:*:*:*:*:*
12.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.85%
Probability of exploitation in next 30 days
EPSS Percentile
76.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0185 is in the 34th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/bugtraq/2003-02/0131.html
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/11306
securityfocus.com / bid/6823