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CVE-2013-4370

14
FAUCET Score

CVE-2013-4370 is a use-after-free or double-free vulnerability in the ocaml binding for the xc_vcpu_getaffinity function in Xen versions 4.2.x and 4.3.x. This flaw allows local users to trigger heap corruption, leading to a denial of service and potentially arbitrary code execution. The vulnerability has a CVSS score of 4.6, indicating a low severity, and requires local access with low attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
4.2.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
4.2.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
4.2.3CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
4.3.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

AV:L/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 66th percentile among its peer group of 3,052 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (1)

redhatCVE-2013-4370Moderate

xen: misplaced free in ocaml xc_vcpu_getaffinity stub (XSA-69)

Oct 10, 2013

References

seclists.org / oss-sec/2013/q4/att-61/xsa69.patch
security.gentoo.org / glsa/glsa-201407-03.xml
openwall.com / lists/oss-security/2013/10/10/13