CVE-2010-0309: Configuration
Vulnerability summary
CVE-2010-0309 is a medium (CVSS 6.8) Configuration vulnerability. EPSS estimates a 2.77% chance of exploitation in the next 30 days, higher than 86.3% of scored vulnerabilities.
Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4Timeline
- 12-02-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The pit_ioport_read function in the Programmable Interval Timer (PIT) emulation in i8254.c in KVM 83 does not properly use the pit_state data structure, which allows guest OS users to cause a denial of service (host OS crash or hang) by attempting to read the /dev/port file.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.77%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.77% 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
No affected systems are recorded for this record.
Known conditions: network-reachable, authentication (CVSS vector). Other conditions: not stated in public data.
References
14 links
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11095VDB EntrySignatureX Refsource OVAL
- bugzilla.redhat.com/show_bug.cgi?id=560887X Refsource CONFIRM
