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CVE-2026-24881

CVSS 8.1 · High EPSS 0.21% · P42
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I. Basic Information for CVE-2026-24881

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
GNUPG 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNUPG是美国GNU社区的一套开源的加密软件，采用GNU通用公共许可证。该软件支持公钥、对称加密、散列等算法。 GnuPG 2.5.17之前版本存在安全漏洞，该漏洞源于特制的CMS EnvelopedData消息可能导致gpg-agent在处理PKDECRYPT--kem=CMS时发生基于栈的缓冲区溢出，可能导致拒绝服务或远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
GnuPGGnuPG 2.5.13 ~ 2.5.17 -

II. Public POCs for CVE-2026-24881

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III. Intelligence Information for CVE-2026-24881

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Same Patch Batch · GnuPG · 2026-01-27 · 3 CVEs total

CVE-2026-248828.4 HIGHGNUPG 安全漏洞
CVE-2026-248833.7 LOWGNUPG 代码问题漏洞

IV. Related Vulnerabilities

Same product: GnuPG
Same vendor: GnuPG
Same weakness: CWE-121

V. Comments for CVE-2026-24881

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