CVE catalog
CVE-2026-62437
When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used b
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.10% · Oct 25, 2026
When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that point the guest about to be terminated could cause its device model (DM) to re-establish such tracking structures, by having it bind one or more IRQs anew. While some of those tracking structures would still be cleaned up later on, at least one would not be.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | xen | sid | 4.20.4+39-gf1e1321c87-1 | fixed |
| Debian | xen | forky | 4.20.4+39-gf1e1321c87-1 | fixed |
| Debian | xen | trixie | 4.20.3+127-gc42374a105-0+deb13u1 | vulnerable |
| Debian | xen | trixie-security | 4.20.4+39-gf1e1321c87-0+deb13u1 | fixed |
| Debian | xen | bookworm | 4.17.5+72-g01140da4e8-1 | vulnerable |
| Debian | xen | bookworm-security | 4.17.7-0+deb12u1 | vulnerable |
| Alpine | xen | 3.21 | 4.19.6-r1 | fixed |
| Alpine | xen | 3.22 | 4.20.4-r1 | fixed |
| Alpine | xen | 3.23 | 4.20.4-r1 | fixed |
| Alpine | xen | 3.24 | 4.21.2-r1 | fixed |
| Suse | xen | linux enterprise micro 5.5 | 4.17.6_16-150500.3.79.1 | fixed |
| Suse | xen | linux enterprise micro 5.3 | 4.16.7_14-150400.4.92.1 | fixed |
| Suse | xen | linux enterprise micro 5.4 | 4.16.7_14-150400.4.92.1 | fixed |
| Suse | xen | linux enterprise server ltss extended security 12 sp5 | 4.12.4_74-3.151.1 | fixed |
| Opensuse | xen | tumbleweed | 4.22.0_04-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | xen | source | sid | 4.20.4+39-gf1e1321c87-1 | not yet assigned | Not reported | Not reported |
| Debian | xen | source | forky | 4.20.4+39-gf1e1321c87-1 | not yet assigned | Not reported | Not reported |
| Debian | xen | source | trixie | 4.20.4+39-gf1e1321c87-0+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | xen | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Alpine | xen | apk | 3.21 | 4.19.6-r1 | Not reported | ALPINE-CVE-2026-62437 | Not reported |
| Alpine | xen | apk | 3.22 | 4.20.4-r1 | Not reported | ALPINE-CVE-2026-62437 | Not reported |
| Alpine | xen | apk | 3.23 | 4.20.4-r1 | Not reported | ALPINE-CVE-2026-62437 | Not reported |
| Alpine | xen | apk | 3.24 | 4.21.2-r1 | Not reported | ALPINE-CVE-2026-62437 | Not reported |
| Suse | xen | rpm | linux enterprise micro 5.5 | 4.17.6_16-150500.3.79.1 | Not reported | SUSE-SU-2026:4087-1 | Not reported |
| Suse | xen | rpm | linux enterprise micro 5.3 | 4.16.7_14-150400.4.92.1 | Not reported | SUSE-SU-2026:4088-1 | Not reported |
| Suse | xen | rpm | linux enterprise micro 5.4 | 4.16.7_14-150400.4.92.1 | Not reported | SUSE-SU-2026:4088-1 | Not reported |
| Suse | xen | rpm | linux enterprise server ltss extended security 12 sp5 | 4.12.4_74-3.151.1 | Not reported | SUSE-SU-2026:4089-1 | Not reported |
| Opensuse | xen | rpm | tumbleweed | 4.22.0_04-1.1 | Not reported | OPENSUSE-SU-2026:11738-1 | Not reported |
Notes
[bookworm] xen: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libxencall1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxen-dev]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxendevicemodel1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxenevtchn1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxenforeignmemory1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxengnttab1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxenhypfs1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxenmisc4.17]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxenstore4]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxentoolcore1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [libxentoollog1]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-doc]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-hypervisor-4.17-amd64]Affected
Source package: [xen]
Details (2)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-hypervisor-4.17-amd64-dbg]Affected
Source package: [xen]
Details (2)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-hypervisor-4.17-arm64]Affected
Source package: [xen]
Details (2)
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-hypervisor-4.17-arm64-dbg]Affected
Source package: [xen]
Details (2)
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-hypervisor-common]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xenstore-utils]Affected
Source package: [xen]
Details (4)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-system-amd64]Affected
Source package: [xen]
Details (2)
4.17.5+72-g01140da4e8-1· amd64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· amd64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
- [xen-system-arm64]Affected
Source package: [xen]
Details (2)
4.17.5+72-g01140da4e8-1· arm64 · bookwormAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
4.17.5+72-g01140da4e8-1· arm64 · bookworm-securityAffected
nvd · xen · debian · bookworm; nvd · xen · debian · 12
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_4087-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-62437]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-62437]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-62437]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4087-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4088-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4089-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11738-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-62437]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-62437.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3248.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]