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CVE-2013-4356

15
FAUCET Score

CVE-2013-4356 describes a denial-of-service vulnerability in Xen 4.3.x, specifically affecting hosts with over 5TB of RAM during live migration. Local 64-bit PV guests can exploit this by manipulating shadow pagetables, leading to invalid memory access and system crashes. With a CVSS score of 5.4 (AV:A/AC:M/Au:N/C:P/I:P/A:P), this vulnerability requires adjacent network access and medium attack complexity, potentially resulting in partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.3.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.4MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 92nd percentile among its peer group of 1,749 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, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gogspatch availablevia llm_extracted

Vendor Advisories (2)

redhatCVE-2013-4356Low

Kernel: Xen: Xsa-64: memory leak by 64bit PV guests under live migration

Sep 30, 2013
gogsllm-gogs-a6465e055568a55b

Memory accessible by 64-bit PV guests under live migration

Sep 30, 2013

References

secunia.com / advisories/54962
Vendor Advisory
security.gentoo.org / glsa/glsa-201407-03.xml
openwall.com / lists/oss-security/2013/09/30/2
securityfocus.com / bid/62709