CVE-2011-4000 describes a critical buffer overflow vulnerability in ChaSen 2.4.x, a Japanese morphological analyzer developed by the Nara Institute of Science and Technology. This flaw allows remote attackers to execute arbitrary code by supplying a specially crafted string. With a CVSS score of 9.3, it presents a severe risk due to its network-based attack vector, medium attack complexity, and complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.4.0CPE matchmatch criteria | cpe:2.3:a:nara_institute_of_science_and_technology:chasen:2.4.0:*:*:*:*:*:*:* | ||
2.4.1CPE matchmatch criteria | cpe:2.3:a:nara_institute_of_science_and_technology:chasen:2.4.1:*:*:*:*:*:*:* | ||
2.4.2CPE matchmatch criteria | cpe:2.3:a:nara_institute_of_science_and_technology:chasen:2.4.2:*:*:*:*:*:*:* | ||
2.4.3CPE matchmatch criteria | cpe:2.3:a:nara_institute_of_science_and_technology:chasen:2.4.3:*:*:*:*:*:*:* | ||
2.4.4CPE matchmatch criteria | cpe:2.3:a:nara_institute_of_science_and_technology:chasen:2.4.4:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:C/I:C/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.