What is CVE-2013-2596?

CVE-2013-2596 is a high-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2013-04-13.

How severe is CVE-2013-2596?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2013-2596 known to be exploited?

Yes. CVE-2013-2596 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-09-15), indicating it is being actively exploited. 13 public proof-of-concept repositories are indexed.

Integer overflow in Linux Kernel

CVE-2013-2596

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.

Vulnerability class: Integer Overflow

Published 2013-04-13 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.032 (88.0th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-09-15. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-10-06.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

rhn.redhat.com/errata/RHSA-2015-0695.html (vendor-advisory, Third Party Advisory)
www.securityfocus.com/bid/59264 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-an… (Exploit, Third Party Advisory, Issue Tracking)
www.mandriva.com/security/advisories (vendor-advisory, Broken Link)
marc.info/ (mailing-list, Patch, Mailing List, Third Party Advisory)
github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e (Patch)
www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (Patch, Third Party Advisory)
git.kernel.org/ (Broken Link)
rhn.redhat.com/errata/RHSA-2015-0803.html (vendor-advisory, Third Party Advisory)
forum.xda-developers.com/showthread.php (Exploit)

Frequently asked questions

What is CVE-2013-2596?: CVE-2013-2596 is a high-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2013-04-13.
How severe is CVE-2013-2596?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2013-2596 known to be exploited?: Yes. CVE-2013-2596 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-09-15), indicating it is being actively exploited. 13 public proof-of-concept repositories are indexed.