10

CVE-2017-10918: xen Improper Input Validation

Modified
AliasesALPINE-CVE-2017-10918UBUNTU-CVE-2017-10918DEBIAN-CVE-2017-10918
Published 05-07-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-10918 is a critical (CVSS 10.0) Improper Input Validation vulnerability in xen. EPSS estimates a 3.67% chance of exploitation in the next 30 days, higher than 89.6% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 10 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
10.0/10
010
Critical · v3.0 (NVD)
EPSS score
3.67%
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 4 · Related 2
DLA-1132-1DSA-3969-1SUSE-SU-2017:1795-1SUSE-SU-2017:1812-1

Timeline

  1. 05-07-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

3.67%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.67% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine1 product
  • xen< 4.9.0-r0 | < 4.6.6-r0 | < 4.7.3-r0 | < 4.8.2-r0
Debian1 product
  • xen< 4.8.1-1+deb9u3
Ubuntu1 product
  • xen< 4.4.2-0ubuntu0.14.04.12 | < 4.6.5-0ubuntu1.2
Xen1 product

4 vendors · 4 products

References

10 links