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CVE-2009-0342

18
FAUCET Score

CVE-2009-0342 describes a local privilege escalation vulnerability in Niels Provos Systrace before version 1.6f on x86_64 Linux systems. An attacker can bypass Systrace's access restrictions by crafting a 64-bit syscall that mirrors a permitted 32-bit syscall, potentially leading to full compromise of confidentiality, integrity, and availability. While rated with a CVSS score of 7.2, indicating high severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6eCPE matchmatch criteria
cpe:2.3:a:provos:systrace:*:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:provos:systrace:1.1:*:*:*:*:*:*:*
1.2CPE matchmatch criteria
cpe:2.3:a:provos:systrace:1.2:*:*:*:*:*:*:*
1.3CPE matchmatch criteria
cpe:2.3:a:provos:systrace:1.3:*:*:*:*:*:*:*
1.4CPE matchmatch criteria
cpe:2.3:a:provos:systrace:1.4:*:*:*:*:*:*:*

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
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 55th percentile among its peer group of 3,237 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

scarybeastsecurity.blogspot.com / 2009/01/bypassing-syscall-filtering.html
scary.beasts.org / security/CESA-2009-001.html
Exploit
citi.umich.edu / u/provos/systrace
securityfocus.com / archive/1/500377/100/0/threaded
securityfocus.com / bid/33417
Exploit