CVE-2015-8615: xen 7PK - Security Features
Vulnerability summary
CVE-2015-8615 is a medium (CVSS 5.0) 7PK - Security Features vulnerability in xen. EPSS estimates a 1.16% chance of exploitation in the next 30 days, higher than 67.2% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 08-01-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The hvm_set_callback_via function in arch/x86/hvm/irq.c in Xen 4.6 does not limit the number of printk console messages when logging the new callback method, which allows local HVM guest OS users to cause a denial of service via a large number of changes to the callback method (HVM_PARAM_CALLBACK_IRQ).
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · DebianEcosystem advisory · calculated5.0MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
EPSS trend
Probability
1.16%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.16% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- xen< 4.8.0~rc3-1
Xen1 product
- xen4.6.0
2 vendors · 2 products