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CVE-2000-1121

27
FAUCET Score

CVE-2000-1121 describes a buffer overflow vulnerability in the 'enq' command within IBM AIX versions 4.3.x and earlier. This flaw allows local users to execute arbitrary commands by providing an excessively long '-M' argument. The vulnerability is rated as HIGH severity (CVSS 7.2), indicating a low attack complexity and the potential for complete compromise of confidentiality, integrity, and availability. While not listed on the KEV or Hot List, an exploit for this vulnerability is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
4.2CPE matchmatch criteria
cpe:2.3:o:ibm:aix:4.2:*:*:*:*:*:*:*
4.2.1CPE matchmatch criteria
cpe:2.3:o:ibm:aix:4.2.1:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:o:ibm:aix:4.3:*:*:*:*:*:*:*
4.3.1CPE matchmatch criteria
cpe:2.3:o:ibm:aix:4.3.1:*:*:*:*:*:*:*
4.3.2CPE matchmatch criteria
cpe:2.3:o:ibm:aix:4.3.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.99%
Probability of exploitation in next 30 days
EPSS Percentile
58.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-20454 · Apr 24, 2003
This CVE's current EPSS score of 0.0099 is in the 78th percentile among its peer group of 3,241 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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

marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/5619
www-1.ibm.com / support/search.wss
www-1.ibm.com / support/search.wss
securityfocus.com / bid/2034
PatchVendor Advisory