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CVE-2013-6375

20
FAUCET Score

CVE-2013-6375 describes a critical vulnerability in Xen 4.2.x and 4.3.x when utilizing Intel VT-d for PCI passthrough. The flaw stems from improper TLB flushing after clearing translation table entries, potentially allowing local guest administrators to achieve denial of service or privilege escalation. With a CVSS score of 7.9 (AV:A/AC:M/Au:N/C:C/I:C/A:C), this vulnerability indicates a high-impact attack requiring adjacent network access and medium attack complexity. There is currently 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
4.2.1CPE 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:*:*:*:*:*:*:*
4.3.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.9HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0139 is in the 84th percentile among its peer group of 239 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2013-6375Important

xen: Insufficient TLB flushing in VT-d (iommu) code

Nov 20, 2013

References

lists.opensuse.org / opensuse-updates/2013-12/msg00059.html
Third Party Advisory
security.gentoo.org / glsa/glsa-201407-03.xml
openwall.com / lists/oss-security/2013/11/20/3
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2013/11/21/1
Mailing ListThird Party Advisory
securitytracker.com / id/1029369
Third Party AdvisoryVDB Entry