How severe is CVE-2010-4158?

CVE-2010-4158 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2010-4158 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4158?

CVE-2010-4158 primarily affects Linux Linux Kernel. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4158?

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

When was CVE-2010-4158 published?

CVE-2010-4158 was published on 2010-12-30 and last updated on 2026-06-16.

CVE-2010-4158

CVE-2010-4158 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 2.1. 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-200.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Linux Linux Kernel
Published: 2010-12-30
Last modified: 2026-06-16

Description

The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.

Frequently asked questions

What is CVE-2010-4158?: The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.
How severe is CVE-2010-4158?: CVE-2010-4158 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2010-4158 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4158?: CVE-2010-4158 primarily affects Linux Linux Kernel. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4158?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4158 published?: CVE-2010-4158 was published on 2010-12-30 and last updated on 2026-06-16.

References

Affected products (11)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:13:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_desktop:10:sp3:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:9:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:10:sp3:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp3:*:*:*:*:*:*

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