CVE-2021-28708: Xen xen

xen: PoD operations on misaligned GFNs T[his CNA information record relates to multiple CVEs…

No CVSS scoreEPSS 0.0035 · 29th percentile

Published by the CVE Program (CNA: XEN) at 24 Nov 2021, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Xen	xen	affected xen-unstable
Xen	xen	unknown unspecified to before 4.12 custom affected 4.12.x to before unspecified custom unaffected next of 4.14.x to before unspecified custom
Xen	xen	affected 4.15.x

Identifiers

CVE-2021-28708

CNA

XEN

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS 0.0035, the 29th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 24 Nov 2021. New records show when each source confirmed them.

Sources

References from the CNA

xenbits.xenproject.org/xsa/advisory-388.txt
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7ZGWVVRI4XY2XSTBI3XEMWBXPDVX6OT/ vendor-advisory
www.debian.org/security/2021/dsa-5017 vendor-advisory
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PXUI4VMD52CH3T7YXAG3J2JW7ZNN3SXF/ vendor-advisory
security.gentoo.org/glsa/202402-07 vendor-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.