CVE-2011-2512: kvm_group qemu-kvm Improper Input Validation
Vulnerability summary
CVE-2011-2512 is a medium (CVSS 5.8) Improper Input Validation vulnerability in kvm_group qemu-kvm. EPSS estimates a 1.88% chance of exploitation in the next 30 days, higher than 79.4% of scored vulnerabilities.
Not severe (CVSS 5.8, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1Timeline
- 21-06-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The virtio_queue_notify in qemu-kvm 0.14.0 and earlier does not properly validate the virtqueue number, which allows guest users to cause a denial of service (guest crash) and possibly execute arbitrary code via a negative number in the Queue Notify field of the Virtio Header, which bypasses a signed comparison.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
1.88%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
Decrease -0.02 pp
From 1.90% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: adjacent network, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- qemu-kvm< 0.12.5+dfsg-5+squeeze4
Kvm_group1 product
- qemu-kvm≤ 0.14.0 | 0.12
2 vendors · 2 products
