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CVE-2013-2596· NVD / CVE Program· CNA mitre

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 A

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.

HighCVSS 7.8 · v3.1KEVWeaponized Fix available

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Published
Apr 12, 2013
Updated
Jun 16, 2026
EPSS
3.2% · 88th percentile
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Report tools

JSON

Action score

62

This week

Don’t wait for the next maintenance window.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
1 / 30 · 3.2%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Sep 15, 2022. That signals real attacks, not theory.

Remediation deadline for government agencies: Oct 6, 2022.

Affected systems

VendorProduct
linuxlinux kernel
motorolaandroid
motorolaatrix hd
motorolarazr hd
motorolarazr m
qualcommmsm8960

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.6.12 and later · before 3.0.75
  • linux linux kernel3.1 and later · before 3.2.45
  • linux linux kernel3.3 and later · before 3.4.42
  • linux linux kernel3.5 and later · before 3.8.9
  • motorola android4.1.2

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 3.9-13.9-1
Red Hat:enterprise_linux:5::clientkernelbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-debugbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-debug-debuginfobefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-debug-develbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfobefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfo-commonbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-develbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-docbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-headersbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-PAEbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-PAE-debuginfobefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-PAE-develbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-xenbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-xen-debuginfobefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::clientkernel-xen-develbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::serverkernel-kdumpbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::serverkernel-kdump-debuginfobefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:5::serverkernel-kdump-develbefore 0:2.6.18-409.el50:2.6.18-409.el5
Red Hat:enterprise_linux:6::clientkernelbefore 0:2.6.32-504.el60:2.6.32-504.el6
Red Hat:enterprise_linux:6::clientkernel-abi-whitelistsbefore 0:2.6.32-504.el60:2.6.32-504.el6
Red Hat:enterprise_linux:6::clientkernel-debugbefore 0:2.6.32-504.el60:2.6.32-504.el6
Red Hat:enterprise_linux:6::clientkernel-debug-debuginfobefore 0:2.6.32-504.el60:2.6.32-504.el6
Red Hat:enterprise_linux:6::clientkernel-debug-develbefore 0:2.6.32-504.el60:2.6.32-504.el6

+67

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Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:linux3.9-1 · Debian:12Package registry (OSV)
red hat:kernel0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-abi-whitelists0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-debug0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-debug-debuginfo0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-debug-devel0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-debuginfo0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-debuginfo-common-i6860:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-debuginfo-common-x86_640:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:kernel-devel0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:perf-debuginfo0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:python-perf0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:python-perf-debuginfo0:2.6.32-504.el6 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:62013-07-16

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+94 d
  3. CISA KEV+3442 d
  4. TodaySep 30, 2026+4919 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records