How severe is CVE-2013-4511?

CVE-2013-4511 has a CVSS 2.0 base score of 6.9, rated medium severity.

Is CVE-2013-4511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4511?

CVE-2013-4511 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-4511?

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

When was CVE-2013-4511 published?

CVE-2013-4511 was published on 2013-11-12 and last updated on 2026-06-16.

CVE-2013-4511

CVE-2013-4511 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 6.9. 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-189.

Key facts

Severity: Medium (CVSS 2.0 base score 6.9)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Linux Linux Kernel
Published: 2013-11-12
Last modified: 2026-06-16

Description

Multiple integer overflows in Alchemy LCD frame-buffer drivers in the Linux kernel before 3.12 allow local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted mmap operations, related to the (1) au1100fb_fb_mmap function in drivers/video/au1100fb.c and the (2) au1200fb_fb_mmap function in drivers/video/au1200fb.c.

Frequently asked questions

What is CVE-2013-4511?: Multiple integer overflows in Alchemy LCD frame-buffer drivers in the Linux kernel before 3.12 allow local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted mmap operations, related to the (1) au1100fb_fb_mmap function in drivers/video/au1100fb.c and the (2) au1200fb_fb_mmap function in drivers/video/au1200fb.c.
How severe is CVE-2013-4511?: CVE-2013-4511 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2013-4511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4511?: CVE-2013-4511 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-4511?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4511 published?: CVE-2013-4511 was published on 2013-11-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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