Is CVE-2017-12136 being actively exploited?

CVE-2017-12136 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2017-12136?

CVE-2017-12136 has a CVSS 3.0 base score of 7.8 (HIGH).

CVE-2017-12136

HIGH · CVSS 7.8EPSS 0.3%EU EUVD

Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.

Key facts

CVSS score: 7.8 (v3.0)
Severity: HIGH
CVSS vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-362
EPSS score: 0.3% (22th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2017-3720)
Published: August 24, 2017
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-3720 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.

View on the EU Vulnerability Database

Affected products

citrix / xenserver
citrix / xenserver
citrix / xenserver
citrix / xenserver
citrix / xenserver
citrix / xenserver
debian / debian linux
debian / debian linux
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen
xen / xen

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Citrix XenServer ® 7.1 LTSR Enterprise Edition (CU2) - Citrix Systems, Inc. - Common Criteria 383-4-467 - archived

References

http://www.debian.org/security/2017/dsa-3969(Third Party Advisory)
http://www.openwall.com/lists/oss-security/2017/08/15/3(Mailing List, Patch, Third Party Advisory)
http://www.securityfocus.com/bid/100346(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1039175(Third Party Advisory, VDB Entry)
http://xenbits.xen.org/xsa/advisory-228.html(Patch, Vendor Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=1477651(Issue Tracking, Patch, Third Party Advisory)
https://security.gentoo.org/glsa/201801-14(Third Party Advisory)
https://support.citrix.com/article/CTX225941(Patch, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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