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CVE-2012-3496

19
FAUCET Score

CVE-2012-3496 describes a denial-of-service vulnerability affecting Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier. A local PV OS guest kernel can trigger a host crash by supplying invalid flags during memory population when translating paging mode is not used. This vulnerability has a CVSS score of 4.7, indicating a medium attack complexity with local access required, leading to a complete system availability loss. 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
<= 6.0.2CPE matchmatch criteria
cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 65th percentile among its peer group of 1,595 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (1)

citrixpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-3496Moderate

kernel: xen: XENMEM_populate_physmap DoS vulnerability

Sep 5, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-09/msg00003.html
lists.opensuse.org / opensuse-security-announce/2012-09/msg00004.html
lists.opensuse.org / opensuse-security-announce/2012-09/msg00012.html
lists.opensuse.org / opensuse-security-announce/2012-09/msg00017.html
lists.opensuse.org / opensuse-security-announce/2012-09/msg00018.html
lists.opensuse.org / opensuse-security-announce/2012-11/msg00017.html
lists.opensuse.org / opensuse-security-announce/2012-11/msg00018.html
lists.xen.org / archives/html/xen-announce/2012-09/msg00002.html
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/50472
Vendor Advisory
secunia.com / advisories/50530
Vendor Advisory
secunia.com / advisories/51413
secunia.com / advisories/55082
security.gentoo.org / glsa/glsa-201309-24.xml
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/78267
security.gentoo.org / glsa/201604-03
support.citrix.com / article/CTX134708
PatchVendor Advisory
wiki.xen.org / wiki/Security_Announcements
debian.org / security/2012/dsa-2544
openwall.com / lists/oss-security/2012/09/05/7
osvdb.org / 85200
securityfocus.com / bid/55412