CVE-2026-24882
Publication date 27 January 2026
Last updated 9 February 2026
Ubuntu priority
Description
In GnuPG before 2.5.17, a stack-based buffer overflow exists in tpm2daemon during handling of the PKDECRYPT command for TPM-backed RSA and ECC keys.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| gnupg2 | 25.10 questing |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
Notes
mdeslaur
TPM support isn't compiled in the Ubuntu package, gnupg2 in Ubuntu is not vulnerable to this issue.
Patch details
| Package | Patch details |
|---|---|
| gnupg2 |
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.4 · High
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |