How severe is CVE-2009-0835?

CVE-2009-0835 has a CVSS 2.0 base score of 3.6, rated low severity.

Is CVE-2009-0835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0835?

CVE-2009-0835 primarily affects Linux Linux Kernel. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0835?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-0835 published?

CVE-2009-0835 was published on 2009-03-06 and last updated on 2026-06-16.

CVE-2009-0835

CVE-2009-0835 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 3.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Low (CVSS 2.0 base score 3.6)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Linux Linux Kernel
Published: 2009-03-06
Last modified: 2026-06-16

Description

The __secure_computing function in kernel/seccomp.c in the seccomp subsystem in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform, when CONFIG_SECCOMP is enabled, does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass intended access restrictions via crafted syscalls that are misinterpreted as (a) stat or (b) chmod, a related issue to CVE-2009-0342 and CVE-2009-0343.

Frequently asked questions

What is CVE-2009-0835?: The __secure_computing function in kernel/seccomp.c in the seccomp subsystem in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform, when CONFIG_SECCOMP is enabled, does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass intended access restrictions via crafted syscalls that are misinterpreted as (a) stat or (b) chmod, a related issue to CVE-2009-0342 and CVE-2009-0343.
How severe is CVE-2009-0835?: CVE-2009-0835 has a CVSS 2.0 base score of 3.6, rated low severity.
Is CVE-2009-0835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0835?: CVE-2009-0835 primarily affects Linux Linux Kernel. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0835?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-0835 published?: CVE-2009-0835 was published on 2009-03-06 and last updated on 2026-06-16.

References

Affected products (13)

cpe:2.3:o:linux:linux_kernel:2.6.25:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.1:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.2:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.3:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.4:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.5:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.6:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.7:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.8:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.9:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.10:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.11:*:x86_64:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.25.12:*:x86_64:*:*:*:*:*

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