CVE-2013-6282

Exp

The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addresses, which allows attackers to read or modify the contents of arbitrary kernel memory locations via a crafted application, as exploited in the wild against Android devices in October and November 2013.

Published: 2013-11-20 Last update: 2026-04-22 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-6282 is rated Critical Active Threat (89.7/100): CVSS High severity, with high exploitation likelihood (EPSS 39.71%, 98th percentile). CISA KEV confirms active exploitation (added 2022-09-15) affecting Linux / Kernel. a weakness (CWE-20) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2013-6282

Name: Linux Kernel Improper Input Validation Vulnerability · CISA KEV detail

Exploit added: 2022-09-15

Action due: 2022-10-06

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2013-6282

EDB-ID Source Kind Published Link
40975 exploit_db edb 2016-12-29 Exploit-DB ↗
31574 exploit_db edb 2014-02-11 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-6282

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 67.65% 39.71% -27.94%
2 2026-06-04 68.16% 67.65% -0.51%
3 2026-05-08 — 68.16% —

Full EPSS history (30 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6282

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2013-6282

OS Trackers for CVE-2013-6282

vendor priority summary link
debian not yet assigned CVE-2013-6282 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-6282
redhat — — https://access.redhat.com/security/cve/CVE-2013-6282
ubuntu medium CVE-2013-6282 medium priority: Ubuntu including 30 source packages (linux, linux-armadaxp, …), 327 status rows across 13 suites (lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 228, not-affected 40, released 32, ignored 27. https://ubuntu.com/security/CVE-2013-6282

NVD evaluator notes for CVE-2013-6282

Comment: AV:L per https://www.codeaurora.org/projects/security-advisories/missing-access-checks-putusergetuser-kernel-api-cve-2013-6282

Affected software / configurations for CVE-2013-6282

Vendor Product Version Raw CPE
linux linux_kernel < 3.2.54 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.3, < 3.4.12 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.5, < 3.5.5 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References for CVE-2013-6282

URL Tags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8404663f81d212918ff85f493649a7991209fa04 Patch
http://www.codeaurora.org/projects/security-advisories/missing-access-checks-putusergetuser-kernel-api-cve-2013-6282 Patch
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.5 Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2013/11/14/11 Mailing List
http://www.securityfocus.com/bid/63734 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2067-1 Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/8404663f81d212918ff85f493649a7991209fa04 Exploit Patch
https://www.exploit-db.com/exploits/40975/ Exploit Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-6282 US Government Resource
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