CVE-2026-24882: gnupg Stack-based Buffer Overflow
CVSS: 8.4v3.1HighModified
AliasesSUSE-SU-2026:0434-1SUSE-SU-2026:20444-1SUSE-SU-2026:20487-1RHSA-2026:2719RHSA-2026:2753UBUNTU-CVE-2026-24882DEBIAN-CVE-2026-24882CGA-5cwr-hmx7-9crrCGA-j3gw-fmh7-v67g
Published 27-01-2026Last modified 15-07-2026
Vulnerability summary
CVE-2026-24882 is a high (CVSS 8.4) Stack-based Buffer Overflow vulnerability in gnupg. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.4/10
010
High · v3.1 (CVE.org)EPSS score
0.44%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 27-01-2026PublishedVulnerability first disclosed.
- 15-07-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
7 scores · 7 sources · 1 versionHigh 8.4Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources7 sources · 7.8–8.4
- OSV · Red hatEcosystem advisory · calculated8.4HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · WolfiEcosystem advisory · calculated8.4HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated8.4HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
+0.03 pp
From 0.41% on 20-09-2026
20-09-202620-10-2026
EPSS score0.44%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (dev.gnupg.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Redhat5 products
- gnupg2< 0:2.4.5-4.el10_1 | < 0:2.4.5-2.el10_0.2
- gnupg2-debuginfo< 0:2.4.5-4.el10_1 | < 0:2.4.5-2.el10_0.2
- gnupg2-debugsource< 0:2.4.5-4.el10_1 | < 0:2.4.5-2.el10_0.2
- gnupg2-smime< 0:2.4.5-4.el10_1 | < 0:2.4.5-2.el10_0.2
- gnupg2-smime-debuginfo< 0:2.4.5-4.el10_1 | < 0:2.4.5-2.el10_0.2
Suse5 products
- gpg2&distro=SUSE Linux Enterprise Module for Basesystem 15 SP7< 2.4.4-150600.3.15.1
- gpg2&distro=SUSE Linux Enterprise Server 15 SP6-LTSS< 2.4.4-150600.3.15.1
- gpg2&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP6< 2.4.4-150600.3.15.1
- gpg2&distro=SUSE Linux Micro 6.0< 2.4.4-7.1
- gpg2&distro=SUSE Linux Micro 6.1< 2.4.4-slfo.1.1_7.1
Chainguard1 product
- gnupg< 2.4.9-r10
Debian1 product
- gnupg2All versions (No fix recorded) | < 2.4.9-4
Gnupg1 product
- gnupg< 2.5.17 | ≥ 2.5.13, < 2.5.17
Gpg4win1 product
- gpg4win≥ 5.0.0, < 5.0.1
Opensuse1 product
- gpg2&distro=openSUSE Leap 15.6< 2.4.4-150600.3.15.1
Ubuntu1 product
- gnupg2All versions (No fix recorded)
Wolfi1 product
- gnupg< 2.4.9-r10
9 vendors · 17 products
