CVE-2009-1527

Status: ModifiedMedium (6.9)—Exploit

Severity6.9Medium · CVSS 2.0

Exploitation probability0.49 %higher than 41% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Race condition in the ptrace_attach function in kernel/ptrace.c in the Linux kernel before 2.6.30-rc4 allows local users to gain privileges via a PTRACE_ATTACH ptrace call during an exec system call that is launching a setuid application, related to locking an incorrect cred_exec_mutex object.

CVSS

Base score: 6.9
Version: 2.0
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.49 %
Percentile among all scored CVEs: 41
Score date: 10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Linux Kernel 2.6.x (Gentoo 2.6.29rc1) - 'ptrace_attach' Local Privilege Escalation (5/13/2009)

Affected technologies (1)

Linux — Linux Kernel

CWEs

CWE-362

References

Show 22 references

Raw JSON (NVD)

Show

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  "lastModified": "2026-06-16T23:07:27.387",
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      "lastModified": "2009-05-06T00:00:00",
      "organization": "Red Hat"
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