CVE catalog

CVE-2025-61663

grub2: CVE-2025-61663

Severity: Medium · CVSS 4.9CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Published: Nov 18, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.14% · Oct 25, 2026

A vulnerability has been identified in the GRUB2 bootloader's normal command that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the normal command is not properly unregistered when the module is unloaded. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability. Impact on the data integrity and confidentiality is also not discarded.

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	grub2	sid	`2.14-4`	fixed
Debian	grub2	forky	`2.14-4`	fixed
Debian	grub2	trixie	`2.12-9+deb13u2`	vulnerable
Debian	grub2	bookworm	`2.06-13+deb12u2`	vulnerable
Debian	grub2	bookworm-security	`2.06-13+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	grub2	source	sid	`2.14-1`	not yet assigned	Not reported	[1120968]
Debian	grub2	source	forky	`2.14-1`	not yet assigned	Not reported	[1120968]
Debian	grub2	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1120968]
Debian	grub2	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1120968]

[Debian bug #1120968]

Notes

[trixie] grub2: Minor issue [bookworm] grub2: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[grub2]Affected
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub2-common]Affected
Source package: [grub2]
Details (6)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u2 · arm64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · arm64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-common]Affected
Source package: [grub2]
Details (6)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u2 · arm64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · arm64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-coreboot]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-coreboot-bin]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-coreboot-dbg]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi]Affected
Source package: [grub2]
Details (6)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u2 · arm64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · arm64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-amd64]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-amd64-bin]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-amd64-dbg]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-amd64-signed-template]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-arm64]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · arm64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · arm64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-arm64-bin]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · arm64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · arm64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-arm64-dbg]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · arm64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · arm64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-arm64-signed-template]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · arm64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · arm64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · arm64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-ia32]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-ia32-bin]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-efi-ia32-dbg]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-emu]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
[grub-emu-dbg]Affected
Source package: [grub2]
Details (3)
- 2.06-13+deb12u2 · amd64 · bookworm
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.12-1~bpo12+1 · amd64 · bookworm-backports
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- 2.06-13+deb12u1 · amd64 · bookworm-security
  Affected
  dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12

Next results

Observed: Oct 24, 2026, 4:35:57 PM UTC

References

[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]