CVE record · CVE-2026-63622

Libvirt: swtpm privilege escalation via symlink following

CVSS 7.8 HighEPSS 0.0014 · 3rd percentile

Published by the CVE Program (CNA: redhat) at 10 Aug 2026, 20:45 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
Red Hat	Red Hat Enterprise Linux 10 Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:11.10.0-12.9.el10_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:10.10.0-8.11.el10_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.5.0-36.el7_9.7 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: virt:rhel https://access.redhat.com/downloads/content/package-browser/	unaffected 8040020260916092751.522a0ee4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: virt:rhel https://access.redhat.com/downloads/content/package-browser/	unaffected 8040020260916092751.522a0ee4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: virt:rhel https://access.redhat.com/downloads/content/package-browser/	unaffected 8060020260910092451.ad008a3a to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Package name: virt:rhel https://access.redhat.com/downloads/content/package-browser/	unaffected 8060020260910092451.ad008a3a to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: virt:rhel https://access.redhat.com/downloads/content/package-browser/	unaffected 8080020260910092120.63b34585 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: virt:rhel https://access.redhat.com/downloads/content/package-browser/	unaffected 8080020260910092120.63b34585 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:11.10.0-12.7.el9_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:9.0.0-10.16.el9_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:10.0.0-6.23.el9_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:10.10.0-7.18.el9_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8 Package name: virt:rhel/libvirt https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux for NVIDIA 26 Package name: libvirt https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown

Identifiers: CVE-2026-63622
CNA: redhat
Weakness (CWE): CWE-59
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Path traversal
Published: 10 Aug 2026
Updated: 4 Nov 2026

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

Score	Rating	CVSS	Vector	Source
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0014, the 3rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

10 Aug 2026, 20:45 UTC Confirmed by the CVE List
10 Aug 2026, 21:17 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:64773 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:65515 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:65516 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:65803 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:68513 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:68594 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:69114 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:69131 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:74424 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:75583 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-63622 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2513065 issue-trackingredhat

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.