CVE-2012-4536
LOW · CVSS 2.1EPSS 0.4%EU EUVD
The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.
Key facts
- CVSS score
- 2.1 (v2.0)
- Severity
- LOW
- CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:P- EPSS score
- 0.4% (36th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-4464)
- Published
- November 21, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-4464 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- xen / xen
References
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
- http://lists.xen.org/archives/html/xen-announce/2012-11/msg00003.html(Vendor Advisory)
- http://osvdb.org/87297
- http://secunia.com/advisories/51200
- http://secunia.com/advisories/51324
- http://secunia.com/advisories/51352
- http://secunia.com/advisories/51413
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.openwall.com/lists/oss-security/2012/11/13/2
- http://www.securityfocus.com/bid/56498
- http://www.securitytracker.com/id?1027760
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80023
- https://security.gentoo.org/glsa/201604-03
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain