Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-1999-1183

20
FAUCET Score

CVE-1999-1183 describes a critical vulnerability in the System Manager sysmgr GUI of SGI IRIX versions 6.3 and 6.4. This flaw allows remote attackers to execute arbitrary commands by tricking a user into opening a specially crafted "runtask" or "runexec" descriptor file, which leverages the Mailcap entry for x-sgi-task or x-sgi-exec types. With a CVSS score of 7.6 (High), this vulnerability presents a significant risk due to its network-based attack vector, high impact on confidentiality, integrity, and availability, despite requiring high attack complexity. There is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, nor any community discussion or media coverage, suggesting it is not currently a focus for attackers.

Impacted Technologies

VendorProductVersion(s)CPE
6.3CPE matchmatch criteria
cpe:2.3:o:sgi:irix:6.3:*:*:*:*:*:*:*
6.4CPE matchmatch criteria
cpe:2.3:o:sgi:irix:6.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.6HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.68%
Probability of exploitation in next 30 days
EPSS Percentile
84.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0268 is in the 42nd percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 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

patches.sgi.com / support/free/security/advisories/19980403-01-PX
PatchVendor Advisory
patches.sgi.com / support/free/security/advisories/19980403-02-PX
PatchVendor Advisory
iss.net / security_center/static/809.php
osvdb.org / 8556