How severe is CVE-2013-2636?

CVE-2013-2636 has a CVSS 2.0 base score of 1.9, rated low severity.

Is CVE-2013-2636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-2636?

CVE-2013-2636 primarily affects Linux Linux Kernel. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-2636?

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

When was CVE-2013-2636 published?

CVE-2013-2636 was published on 2013-03-22 and last updated on 2026-06-16.

CVE-2013-2636

CVE-2013-2636 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 1.9. 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-399.

Key facts

Severity: Low (CVSS 2.0 base score 1.9)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Linux Linux Kernel
Published: 2013-03-22
Last modified: 2026-06-16

Description

net/bridge/br_mdb.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel memory via a crafted application.

Frequently asked questions

What is CVE-2013-2636?: net/bridge/br_mdb.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel memory via a crafted application.
How severe is CVE-2013-2636?: CVE-2013-2636 has a CVSS 2.0 base score of 1.9, rated low severity.
Is CVE-2013-2636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2636?: CVE-2013-2636 primarily affects Linux Linux Kernel. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-2636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-2636 published?: CVE-2013-2636 was published on 2013-03-22 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:*

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