CVE-2015-4163: xen
Vulnerability summary
CVE-2015-4163 is a medium (CVSS 4.9) vulnerability in xen. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 38.1% of scored vulnerabilities.
Not severe (CVSS 4.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 15-06-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.44% 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 causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- xen< 4.6.0-1
Ubuntu1 product
- xen< 4.4.2-0ubuntu0.14.04.2
Xen1 product
- xen4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 4.3.0 | 4.3.1 | 4.3.4 | 4.4.0 | 4.4.0:rc1 | 4.4.1 | 4.5.0
3 vendors · 3 products
References
13 links- support.citrix.com/article/CTX206006X Refsource CONFIRM
- support.citrix.com/article/CTX201145X Refsource CONFIRM