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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GnuPG | GnuPG | < 2.5.17 | 2.5.17 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gnupg2 | 2.4.9-4 | — |
| Debian 13 | gnupg2 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | gnupg2 +1 | 2.4.5-4.el10_1 | RHSA-2026:2719 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | gnupg2 +1 | 2.4.5-2.el10_0.2 | RHSA-2026:2753 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | gnupg2 +1 | 2.4.5-4.el10_1 | ALSA-2026:2719 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | gnupg2 | 2.4.5-4.el10_1 | RLSA-2026:2719 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | gpg2 | 2.4.4-150600.3.15.1 | SUSE-SU-2026:0434-1 |
| SLES 15 SP6 | gpg2 | 2.4.4-150600.3.15.1 | SUSE-SU-2026:0434-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | gpg2 | 2.5.5-160000.4.1 | SUSE-SU-2026:20195-1 |
| SLES for SAP 15 SP6 | gpg2 | 2.4.4-150600.3.15.1 | SUSE-SU-2026:0434-1 |
| SLES 16.0 | gpg2 | 2.5.5-160000.4.1 | SUSE-SU-2026:20195-1 |
| SLE Micro 6.2 | gpg2 | 2.5.5-160000.4.1 | SUSE-SU-2026:20179-1 |
| SLE Micro 6.1 | gpg2 | 2.4.4-slfo.1.1_7.1 | SUSE-SU-2026:20487-1 |
| SLE Micro 6.0 | gpg2 | 2.4.4-7.1 | SUSE-SU-2026:20444-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gpg2 | 2.5.17-1.1 | openSUSE-SU-2026:10112-1 |
| openSUSE Leap 16.0 | gpg2 | 2.5.5-160000.4.1 | openSUSE-SU-2026:20136-1 |
| openSUSE Leap 15.6 | gpg2 | 2.4.4-150600.3.15.1 | SUSE-SU-2026:0434-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | gnupg2 +2 | 2.3.7-1.amzn2023.0.7 | ALAS2023-2026-1427 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | gnupg2 | 2.4.9-2 | — |
| Azure Linux 2 (CBL-Mariner) | gnupg2 | 2.4.0-3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | gnupg2 +1 | 2.4.5-4.el10_1 | ELSA-2026-2719 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | gnupg | 2.4.9-r10 | — |
Advisories 15
- ALSA-2026:2719 Important: gnupg2 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:2753 Red Hat Security Advisory: gnupg2 security update Red Hat Security Advisories (RHSA) · Jul 19, 2026
- RHSA-2026:2719 Red Hat Security Advisory: gnupg2 security update Red Hat Security Advisories (RHSA) · Jul 19, 2026
- WID-SEC-2026-0778 Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- WID-SEC-2026-0231 GnuPG und Gpg4win: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 23, 2026
- openSUSE-SU-2026:20136-1 Security update for gpg2 SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10112-1 dirmngr-2.5.17-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20487-1 Security update for gpg2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20444-1 Security update for gpg2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20195-1 Security update for gpg2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20179-1 Security update for gpg2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0434-1 Security update for gpg2 SUSE / openSUSE Security Updates · Mar 23, 2026
- RLSA-2026:2719 Important: gnupg2 security update Rocky Linux Security Advisories · Feb 24, 2026
- ALAS2023-2026-1427 Important: gnupg2 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 18, 2026
- ELSA-2026-2719 Important: gnupg2 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Feb 16, 2026