CVE-2025-61663: CWE-825
Source GCVE Database
Not known to be exploited · CVSS 4.9 Medium.
Data as of 13 Nov 2026, 20:14 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 4.9 |
|---|
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 18 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GNUgrub2 | Affected
| Fixed in– |
AI-suggested
There is currently no available mitigation or fix for this vulnerability. Users should monitor vendor advisories for updates. Since exploitation requires local or physical access, restricting such access can reduce risk.
Description
A use-after-free vulnerability exists in the GRUB2 bootloader's normal command due to improper unregistration when the module is unloaded. Exploiting this flaw can cause the system to access invalid memory, leading to system instability and a denial of service (crash). The vulnerability requires local or physical access and has a moderate impact rating. There is currently no available mitigation or fix for this issue.