CVE-2002-0813 describes a heap-based buffer overflow vulnerability in the TFTP server functionality of Cisco IOS versions 11.1, 11.2, and 11.3. This flaw allows remote attackers to trigger a denial of service (device reset) or modify configuration by sending a crafted request with an excessively long filename. With a CVSS score of 7.1, this vulnerability is considered high severity, requiring medium attack complexity but no authentication, and primarily impacts availability. While not listed on the KEV catalog, public exploit code exists on ExploitDB, though there is no evidence of active exploitation, Metasploit/Nuclei modules, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
11.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:11.1:*:*:*:*:*:*:* | ||
11.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios:11.2:*:*:*:*:*:*:* | ||
11.3CPE matchmatch criteria | cpe:2.3:o:cisco:ios:11.3:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:C
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub 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 records are not available for this CVE.