CVE-2017-8905: xen Incorrect Calculation
Vulnerability summary
CVE-2017-8905 is a high (CVSS 8.8) Incorrect Calculation vulnerability in xen. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 36.5% of scored vulnerabilities.
Not severe (CVSS 8.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 11-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Xen through 4.6.x on 64-bit platforms mishandles a failsafe callback, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-215.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.42% on 05-10-2026
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 causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- xen< 4.6.3-r7 | < 4.6.3-r9 | < 4.7.2-r1
Debian1 product
- xen< 4.8.0~rc3-1
Ubuntu1 product
- xen< 4.4.2-0ubuntu0.14.04.11 | < 4.6.5-0ubuntu1.1
Xen1 product
- xen4.6.0 | 4.6.1 | 4.6.2 | 4.6.3 | 4.6.4 | 4.6.5
4 vendors · 4 products
References
9 links- blog.xenproject.org/2017/05/02/updates-on-xsa-213-xsa-214-and-xsa-215/X Refsource CONFIRMVendor Advisory
