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CVE-2025-0622— Grub2: command/gpg: use-after-free due to hooks not being removed on module unload

Quick assessment

Affected
CVE-2025-0622
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GNU GRUB是GNU社区的一款Linux系统引导程序。 GNU GRUB存在资源管理错误漏洞，该漏洞源于模块卸载后未清除钩子，会导致释放后重用并执行任意代码。

CVSS 6.4 · Medium EPSS 0.28% · P19

Affected Version Matrix 6

VendorProduct Version RangeStatus
None None ≤ 2.12 affected
Red Hat Red Hat Enterprise Linux 10 1:2.12-15.el10_0< * unaffected
Red Hat Red Hat Enterprise Linux 7 any unknown
Red Hat Red Hat Enterprise Linux 8 any unknown
Red Hat Red Hat Enterprise Linux 9 1:2.06-104.el9_6< * unaffected
Red Hat Red Hat OpenShift Container Platform 4 any affected

I. Basic Information for CVE-2025-0622

Vulnerability Information
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Vulnerability Title
Grub2: command/gpg: use-after-free due to hooks not being removed on module unload
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If correctly exploited, this vulnerability may result in arbitrary code execution, eventually allowing the attacker to bypass secure boot protections.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
GNU GRUB 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU GRUB是GNU社区的一款Linux系统引导程序。 GNU GRUB存在资源管理错误漏洞，该漏洞源于模块卸载后未清除钩子，会导致释放后重用并执行任意代码。
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

Vendor Product Affected Versions CPE Subscribe
- - 0 ~ 2.12 -
Red Hat Red Hat Enterprise Linux 10 1:2.12-15.el10_0 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red Hat Red Hat Enterprise Linux 9 1:2.06-104.el9_6 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2025-0622

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III. Intelligence Information for CVE-2025-0622

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Vendor Advisories for CVE-2025-0622 (3)

Mailing List Discussions for CVE-2025-0622 (1)

IV. Related Vulnerabilities

Same weakness: CWE-416

V. Comments for CVE-2025-0622

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