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CVE-1999-0789

35
FAUCET Score

CVE-1999-0789 describes a critical buffer overflow vulnerability within the ftpd service's libc library on IBM AIX systems. This flaw allows for unauthenticated remote attackers to execute arbitrary code with maximum impact on confidentiality, integrity, and availability, as indicated by its CVSS score of 10.0. While not on CISA's KEV catalog, public exploit code exists (EDB-19532), and its high FAUCET Risk Score of 98/100 suggests significant potential for exploitation despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
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

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
3.11%
Probability of exploitation in next 30 days
EPSS Percentile
86.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-19532 · Sep 28, 1999
This CVE's current EPSS score of 0.0311 is in the 76th percentile among its peer group of 51,553 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, 0.1 Mastodon, and 0.4 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

ciac.org / ciac/bulletins/j-072.shtml
securityfocus.com / bid/679