Back
CVE-2017-17564
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS…
- 7.8HighCVSS base score
- 0.35%Exploitation in 30 daysEPSS · top 71% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging incorrect error handling for reference counting in shadow mode.
Timeline
ID reserved
By mitre
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.8 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.35% · top 71% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
9
- https://xenbits.xen.org/xsa/advisory-250.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20180105 [SECURITY] [DLA 1230-1] xen security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20181018 [SECURITY] [DLA 1549-1] xen security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 102172 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201801-14 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 1040770 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://www.openwall.com/lists/oss-security/2017/12/12/3 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4112 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://support.citrix.com/article/CTX232096 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-8722 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-17564)Record last updated .