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CVE-1999-1554

11
FAUCET Score

CVE-1999-1554 describes a local privilege escalation vulnerability in the /usr/sbin/Mail program on SGI IRIX versions 3.3 and 3.3.1. The flaw allows local users to read the mail of other users due to improper group ID handling. Rated with a CVSS score of 2.1 (LOW), this vulnerability has a low attack complexity and requires local access, with the primary impact being confidentiality compromise. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this decades-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.3CPE matchmatch criteria
cpe:2.3:o:sgi:irix:3.3:*:*:*:*:*:*:*
3.3.1CPE matchmatch criteria
cpe:2.3:o:sgi:irix:3.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 62nd percentile among its peer group of 2,096 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, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

cert.org / advisories/CA-1990-08.html
PatchThird Party AdvisoryUS Government Resource
iss.net / security_center/static/3164.php
securityfocus.com / bid/13
PatchVendor Advisory