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Gpg4win CVE-2026-24882

HIGH
Stack-based Buffer Overflow (CWE-121)
2026-01-27 cve@mitre.org
Buffer Overflow Stack Overflow Gpg4win Gnupg Red Hat Suse
8.4
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.4 HIGH
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SUSE
HIGH
qualitative
Red Hat
8.4 HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Patch released
Apr 09, 2026 - 20:30 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 06, 2026 - 17:50 vuln.today
Public exploit code
CVE Published
Jan 27, 2026 - 19:16 nvd
HIGH 8.4

DescriptionCVE.org

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.

AnalysisAI

Stack-based buffer overflow in GnuPG's tpm2daemon component allows local attackers to achieve full system compromise through specially crafted PKDECRYPT commands targeting TPM-backed RSA and ECC keys. Public exploit code exists for this vulnerability, which affects GnuPG versions before 2.5.17 and impacts users of GnuPG, Gpg4win, and Stack Overflow integrations. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send malformed PKDECRYPT command to tpm2daemon
Exploit
Overflow stack buffer during RSA/ECC key processing
Impact
Execute arbitrary code with tpm2daemon privileges
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Vulnerability AssessmentAI

Exploitation tpm2daemon active with TPM-backed RSA or ECC keys configured; local attacker with access to tpm2daemon socket or communication channel. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.4 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this vulnerability to compromise the affected system.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Inventory all systems running GnuPG versions before 2.5.17, particularly those with TPM-backed RSA/ECC keys in use; disable TPM2 daemon if not operationally critical. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

Vendor StatusVendor

SUSE

Severity: High
Product Status
Container suse/manager/5.0/x86_64/proxy-httpd:latest Container suse/manager/5.0/x86_64/proxy-salt-broker:latest Container suse/manager/5.0/x86_64/server:latest Container suse/multi-linux-manager/5.1/x86_64/proxy-httpd:5.1.2.8.15.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-salt-broker:5.1.2.9.13.2 Container suse/multi-linux-manager/5.1/x86_64/server-saline:5.1.2.9.13.1 Container suse/multi-linux-manager/5.1/x86_64/server:5.1.2.8.13.2 Image SLES15-SP6-BYOS Image SLES15-SP6-BYOS-EC2 Image SLES15-SP6-HPC-BYOS Image SLES15-SP6-HPC-BYOS-EC2 Image SLES15-SP6-HPC-EC2 Image SLES15-SP6-Hardened-BYOS Image SLES15-SP6-Hardened-BYOS-EC2 Image SLES15-SP6-SAP-BYOS Image SLES15-SP6-SAP-BYOS-EC2 Image SLES15-SP6-SAP-Hardened-BYOS Image SLES15-SP6-SAP-Hardened-BYOS-EC2 Image SLES15-SP6-SAP-Hardened-EC2 Image SLES15-SP7-BYOS-EC2 Image SLES15-SP7-CHOST-BYOS-Aliyun Image SLES15-SP7-CHOST-BYOS-Azure Image SLES15-SP7-CHOST-BYOS-EC2 Image SLES15-SP7-CHOST-BYOS-GCE Image SLES15-SP7-CHOST-BYOS-GDC Image SLES15-SP7-CHOST-BYOS-SAP-CCloud Image SLES15-SP7-GCE-3P Image SLES15-SP7-HPC-BYOS-EC2 Image SLES15-SP7-Hardened-BYOS-EC2 Image SLES15-SP7-SAP-Azure-LI-BYOS-Production Image SLES15-SP7-SAP-Azure-VLI-BYOS-Production Image SLES15-SP7-SAP-BYOS-EC2 Image SLES15-SP7-SAP-EC2 Image SLES15-SP7-SAP-GCE-3P Image SLES15-SP7-SAP-Hardened-BYOS-EC2 Image proxy-salt-broker-image Image server-image Image server-saline-image Affected
Container suse/sl-micro/6.0/baremetal-os-container:2.1.3-6.125 Container suse/sl-micro/6.0/base-os-container:2.1.3-7.94 Container suse/sl-micro/6.0/toolbox:13.2-9.67 Container suse/sl-micro/6.1/baremetal-os-container:2.2.1-7.57 Container suse/sl-micro/6.1/base-os-container:2.2.1-5.78 Image SL-Micro Image SL-Micro-Azure Image SL-Micro-BYOS-Azure Image SL-Micro-BYOS-EC2 Image SL-Micro-BYOS-GCE Image SL-Micro-Base Image SL-Micro-Base-RT Image SL-Micro-Base-RT-SelfInstall Image SL-Micro-Base-RT-encrypted Image SL-Micro-Base-SelfInstall Image SL-Micro-Base-encrypted Image SL-Micro-Base-qcow Image SL-Micro-Default Image SL-Micro-Default-SelfInstall Image SL-Micro-Default-encrypted Image SL-Micro-Default-qcow Image SL-Micro-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-Azure-llc Image SUSE-Multi-Linux-Manager-Server-Azure-ltd Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-EC2-llc Image SUSE-Multi-Linux-Manager-Server-EC2-ltd Affected
Container suse/sles/16.0/toolbox:16.3-1.34 Image SLES-Azure-3P Image SLES-Azure-Basic Image SLES-Azure-Standard Image SLES-BYOS-Azure Image SLES-BYOS-EC2 Image SLES-BYOS-GCE Image SLES-CHOST-BYOS-Aliyun Image SLES-CHOST-BYOS-Azure Image SLES-CHOST-BYOS-EC2 Image SLES-CHOST-BYOS-GCE Image SLES-CHOST-BYOS-GDC Image SLES-CHOST-BYOS-SAP-CCloud Image SLES-EC2 Image SLES-GCE Image SLES-Hardened-BYOS-Azure Image SLES-Hardened-BYOS-EC2 Image SLES-Hardened-BYOS-GCE Image SLES-SAP-Azure Image SLES-SAP-Azure-3P Image SLES-SAP-BYOS-Azure Image SLES-SAP-BYOS-EC2 Image SLES-SAP-BYOS-GCE Image SLES-SAP-GCE Image SLES-SAPCAL-Azure Image SLES-SAPCAL-EC2 Image SLES-SAPCAL-GCE Affected
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP6-LTSS Fixed

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CVE-2026-24882 vulnerability details – vuln.today
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