6

CVE-2016-9385: citrix xenserver Improper Input Validation

Modified
AliasesALPINE-CVE-2016-9385UBUNTU-CVE-2016-9385DEBIAN-CVE-2016-9385
Published 23-01-2017Last modified 06-08-2024

Vulnerability summary

CVE-2016-9385 is a medium (CVSS 6.0) Improper Input Validation vulnerability in citrix xenserver. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 37.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.0/10
010
Medium · v3.0 (NVD)
EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 5
DSA-3729-1MGASA-2017-0012OPENSUSE-SU-2024:11520-1SUSE-SU-2016:3067-1SUSE-SU-2016:3083-1SUSE-SU-2016:3156-1

Timeline

  1. 23-01-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.43% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine1 product
  • xen< 4.7.1-r1
Citrix1 product
Debian1 product
  • xen< 4.8.0-1
Ubuntu1 product
  • xen< 4.4.2-0ubuntu0.14.04.9 | < 4.6.0-1ubuntu4.3
Xen1 product
  • xen4.4.0 | 4.4.1 | 4.4.2 | 4.4.3 | 4.4.4 | 4.5.0 | 4.5.1 | 4.5.2 | 4.5.3 | 4.5.5 | 4.6.0 | 4.6.1 | 4.6.3 | 4.6.4 | 4.7.0 | 4.7.1

5 vendors · 5 products

References

10 links