CVE-2013-2596
Linux Kernel Integer Overflow Vulnerability
- High 7.8
- Exploited: added to CISA KEV 15 Sep 2022
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.
Key facts
- Published
- 13 Apr 2013
- Last changed
- 22 Oct 2025
- Assigned by
- mitre
- KEV added
- 15 Sep 2022
- KEV fix due
- 6 Oct 2022
- EPSS
- 3.212% likely to be exploited in the next 30 days, higher than 88.389% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 13 Apr 2013 Published
- 15 Sep 2022 CVE-2013-2596 added to CISA KEV
- 15 Sep 2022 Added to the CISA KEV catalogue