CVE & CISA-KEV Catalog

CVE-2013-2596

HIGHCISA KEVEPSS 87th pctl
7.8
CVSS v3
NVD

Description

Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.

CWE-190Integer Overflow

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.37%probability of exploitation in 30 days
87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Linux Kernel Integer Overflow Vulnerability

Linux kernel fb_mmap function in drivers/video/fbmem.c contains an integer overflow vulnerability that allows for privilege escalation.

Apply updates per vendor instructions.

Remediation due: 2022-10-06

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-21.