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CVE-2013-2596

63
FAUCET Score

CVE-2013-2596 is an integer overflow vulnerability in the Linux kernel's fb_mmap function, specifically affecting versions before 3.8.9 and certain Motorola Android 4.1.2 builds. This flaw allows a local attacker to gain root privileges by creating a read-write memory mapping of the entire kernel memory via crafted mmap2 system calls to /dev/graphics/fb0. Rated with a CVSS score of 7.8 (High), this vulnerability has a low attack complexity and can lead to complete compromise of confidentiality, integrity, and availability. It is actively exploited, as indicated by its presence in CISA's KEV catalog and demonstrated by the Motochopper pwn program, despite a lack of public Metasploit or ExploitDB modules. The vulnerability has garnered significant community discussion and media coverage, highlighting its impact.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.12, < 3.0.75CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.1, < 3.2.45CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.4.42CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.5, < 3.8.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.1.2CPE matchmatch criteria
cpe:2.3:o:motorola:android:4.1.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.37%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Sep 15, 2022
This CVE's current EPSS score of 0.0337 is in the 97th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.2 Advanced Update SupportFixed in: kernel-0:2.6.32-220.60.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-409.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.5 Extended Update SupportFixed in: kernel-0:2.6.32-431.53.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.4 Advanced Update SupportFixed in: kernel-0:2.6.32-358.59.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-504.el6
View patch

Vendor Advisories (1)

redhatCVE-2013-2596Important

kernel: integer overflow in fb_mmap

Apr 9, 2013

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
forum.xda-developers.com / showthread.php
Exploit
git.kernel.org
Broken Link
git.kernel.org
Broken Link
kb.juniper.net / InfoCenter/index
Third Party Advisory
marc.info
Mailing ListPatchThird Party Advisory
rhn.redhat.com / errata/RHSA-2015-0695.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-0782.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-0803.html
Third Party Advisory
github.com / torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e
Patch
github.com / torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a
ExploitPatch
droid-life.com / 2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too
ExploitIssue TrackingThird Party Advisory
droidrzr.com / index.php/topic/15208-root-motochopper-yet-another-android-root-exploit
ExploitIssue Tracking
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.8.9
Mailing ListRelease Notes
mandriva.com / security/advisories
Broken Link
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
PatchThird Party Advisory
securityfocus.com / bid/59264
Broken LinkThird Party AdvisoryVDB Entry