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CVE-2013-1917
Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction,…
- 1.9LowCVSS base score
- 0.37%Exploitation in 30 daysEPSS · top 68% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.
Timeline
ID reserved
By redhat
- 3 months later
· 3 months later
Published
- 11 years later
· 11 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 | 2.0 | Low1.9 | AV:L/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 0.37% · top 68% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.9.
Affected products
n/a
- affected n/a
References
References10
- SUSE-SU-2014:0470 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 55082 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1028455 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- GLSA-201309-24 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- openSUSE-SU-2013:0912 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [oss-security] 20130418 Xen Security Advisory 44 (CVE-2013-1917) - Xen PV DoS vulnerability with SYSENTER (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- DSA-2662 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- SUSE-SU-2014:0446 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2013-6723 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- SUSE-SU-2014:0411 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_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-2013-1911 (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)
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[](https://cveledger.app/cve/CVE-2013-1917)Record last updated .