CVE-2026-99287 linux linux

no score yetEPSS 0.2%Fix available

linux linux: no CVSS score yet. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

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Affected
Versions
Fix and patched versions
Linux distributions
References
Your exposure

In the Linux kernel, the following vulnerability has been resolved: xen-netback: Zero out sring pointers on unmap If xenvif_map_frontend_data_rings() fails when a ring is already mapped, it unmaps them via xenvif_unmap_frontend_data_rings() which keeps the ring pointers unchanged. xenvif_connect_data()'s cleanup path calls xenvif_disconnect_queue() which in turn calls xenvif_unmap_frontend_data_rings() again, which will attempt to unmap the pointers a second time. Zero out the ring pointers after they are unmapped to avoid this issue. This is XSA-532

EPSS: 0.2% estimated probability of exploitation activity in the next 30 days; 7th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
Published: 2026-11-10 19:22 UTC
Modified: 2026-11-10 21:22 UTC
Assigned by: Linux (CNA)
NVD analysis: Awaiting analysis
Record from: the NVD, synced 2026-11-10 21:39 UTC

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Affected

linux:linux

Versions

From the CNA's record in the CVE List.

Product	Affected
Linux	5.5 and later

Fixed in

Product	Release line	Fixed in
Linux	6.12	6.12.117
Linux	6.18	6.18.63
Linux	7.3	7.3.4

Fix and patched versions

Linux Linux: fixed in 6.12.117
Linux Linux: fixed in 6.18.63
Linux Linux: fixed in 7.3.4
Debian: fixed package versions per release

Linux distributions

Distribution	Release	Package	Fixed in	Advisory
Debian	12, 14	linux	no fix listed	DEBIAN-CVE-2026-99287
Debian	13	linux	6.12.117-1	DEBIAN-CVE-2026-99287
Ubuntu	16.04:LTS	linux-hwe-edge	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	18.04:LTS	linux-gcp, linux-hwe, linux-oem and 12 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	20.04:LTS	linux-gke, linux-gkeop, linux-riscv and 26 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	22.04:LTS	linux, linux-aws, linux-gcp and 57 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	24.04:LTS	linux, linux-aws, linux-gcp and 50 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	26.04:LTS	linux, linux-aws, linux-gcp and 12 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	26.10	linux, linux-aws, linux-gcp and 6 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	Nvidia-BlueField:22.04:LTS, Nvidia-BlueField:24.04:LTS	linux-bluefield	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	Pro:14.04:LTS	linux, linux-aws, linux-azure and 1 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	Pro:16.04:LTS	linux, linux-aws, linux-gcp and 5 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	Pro:18.04:LTS	linux, linux-aws, linux-kvm and 10 more	no fix listed	UBUNTU-CVE-2026-99287
Ubuntu	Pro:20.04:LTS	linux, linux-aws, linux-gcp and 19 more	no fix listed	UBUNTU-CVE-2026-99287
4 more for Ubuntu in the JSON and on Ubuntu's page.
Azure Linux	3	kernel	no fix listed	AZL-113317
Alpaquita	23, 25, stream	linux-lts	no fix listed	BELL-CVE-2026-99287

From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; Microsoft's Azure Linux vulnerability data, MIT; BellSoft's OSV database, MIT. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu · Alpaquita.

References

Check your stack JSON