CVE-2016-1571: citrix xenserver DEPRECATED: Code
CVSS: 6.3v3.0MediumModified
AliasesUBUNTU-CVE-2016-1571DEBIAN-CVE-2016-1571
Published 22-01-2016Last modified 05-08-2024
Vulnerability summary
CVE-2016-1571 is a medium (CVSS 6.3) DEPRECATED: Code vulnerability in citrix xenserver. EPSS estimates a 1.28% chance of exploitation in the next 30 days, higher than 69.4% of scored vulnerabilities.
CVSS score
6.3/10
010
Medium · v3.0 (NVD)EPSS score
1.28%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 6Timeline
- 22-01-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.3Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.3MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.3MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Medium 4.7Preferred score · NVD (NIST)
AV:L/AC:M/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
1.28%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
0.00 pp
From 1.28% on 18-09-2026
18-09-202618-10-2026
EPSS score1.28%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Citrix1 product
- xenserver≤ 6.5
Debian1 product
- xen< 4.8.0~rc3-1
Ubuntu1 product
- xen< 4.4.2-0ubuntu0.14.04.5
Xen1 product
- xen3.3.0 | 3.3.1 | 3.3.2 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3 | 3.4.4 | 4.1.0 | 4.1.1 | 4.1.2 | 4.1.3 | 4.1.4 | 4.1.5 | 4.1.6 | 4.1.6.1 | 4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 4.2.4 | 4.2.5 | 4.3.0 | 4.3.1 | 4.3.2 | 4.3.3 | 4.3.4 | 4.4.0 | 4.4.0:rc1 | 4.4.1 | 4.4.2 | 4.4.3 | 4.5.0 | 4.5.1 | 4.5.2 | 4.6.0
4 vendors · 4 products