How severe is CVE-2013-4300?

CVE-2013-4300 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2013-4300 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4300?

CVE-2013-4300 primarily affects Linux Linux Kernel. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4300?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-4300 published?

CVE-2013-4300 was published on 2013-09-25 and last updated on 2026-06-16.

CVE-2013-4300

CVE-2013-4300 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 7.2. 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: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Linux Linux Kernel
Published: 2013-09-25
Last modified: 2026-06-16

Description

The scm_check_creds function in net/core/scm.c in the Linux kernel before 3.11 performs a capability check in an incorrect namespace, which allows local users to gain privileges via PID spoofing.

Frequently asked questions

What is CVE-2013-4300?: The scm_check_creds function in net/core/scm.c in the Linux kernel before 3.11 performs a capability check in an incorrect namespace, which allows local users to gain privileges via PID spoofing.
How severe is CVE-2013-4300?: CVE-2013-4300 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2013-4300 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4300?: CVE-2013-4300 primarily affects Linux Linux Kernel. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4300?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-4300 published?: CVE-2013-4300 was published on 2013-09-25 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:*

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