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grub2 — Vulnerabilities & Security Advisories 26

All 26 CVE vulnerabilities found in grub2, with AI-generated Chinese analysis, references, and POCs.

This vulnerability aggregation page focuses on the GRUB2 bootloader, maintaining a structured collection of security defects reported for this specific open-source component. The page collects data on known weaknesses, including buffer overflows, authentication bypasses, and memory corruption issues, covering the historical range from initial release through recent security advisories. Visitors can use this resource to track the vendor's security advisories, understand specific weakness classes affecting the bootloader, and review the complete vulnerability history for GRUB2 to assess its long-term security posture.

Vendor: [UNKNOWN]

CVE ID Title CVSS Severity Published
CVE-2026-97876 Bypass of GRUB lockdown restriction in Secure Boot mode via serial command MMIO base address CWE-822 6.4 Medium 2026-10-02
CVE-2025-54770 Grub2: use-after-free in net_set_vlan CWE-825 4.9 Medium 2025-11-18
CVE-2025-61664 Grub2: missing unregister call for normal_exit command may lead to use-after-free CWE-825 4.9 Medium 2025-11-18
CVE-2025-61663 Grub2: missing unregister call for normal commands may lead to use-after-free CWE-825 4.9 Medium 2025-11-18
CVE-2025-61662 Grub2: missing unregister call for gettext command may lead to use-after-free 7.8 High 2025-11-18
CVE-2025-61661 Grub2: grub2: out-of-bounds write via malicious usb device CWE-131 4.8 Medium 2025-11-18
CVE-2025-54771 Grub2: use-after-free in grub_file_close() CWE-825 4.9 Medium 2025-11-18
CVE-2024-56738 GNU GRUB 安全漏洞 CWE-208 7.5 - 2024-12-29
CVE-2024-56737 GNU GRUB 安全漏洞 CWE-122 9.8 - 2024-12-29
CVE-2022-3775 grub2 缓冲区错误漏洞 CWE-787 7.7 - 2022-12-19
CVE-2022-2601 grub2 安全漏洞 CWE-122 8.6 - 2022-12-14
CVE-2021-3697 grub2 缓冲区错误漏洞 CWE-787 7.0 - 2022-07-06
CVE-2021-3696 grub2 缓冲区错误漏洞 CWE-787 7.0 - 2022-07-06
CVE-2021-3695 grub2 缓冲区错误漏洞 CWE-787 6.4 - 2022-07-06
CVE-2021-3981 grub2 安全漏洞 CWE-276 5.5 - 2022-03-08
CVE-2021-3418 grub2 安全漏洞 CWE-281 6.4 - 2021-03-15
CVE-2021-20233 grub2 缓冲区错误漏洞 CWE-787 8.2 - 2021-03-03
CVE-2021-20225 grub2 缓冲区错误漏洞 CWE-787 6.7 - 2021-03-03
CVE-2020-25632 grub2 资源管理错误漏洞 CWE-416 8.2 - 2021-03-03
CVE-2020-25647 grub2 缓冲区错误漏洞 CWE-787 7.6 - 2021-03-03
CVE-2020-14372 grub2 安全漏洞 CWE-184 8.2 - 2021-03-03
CVE-2020-27749 grub2 缓冲区错误漏洞 CWE-121 6.7 - 2021-03-03
CVE-2020-27779 grub2 安全漏洞 CWE-285 6.4 - 2021-03-03
CVE-2020-14311 grub2 输入验证错误漏洞 CWE-190 5.7 Medium 2020-07-31
CVE-2020-14310 grub2 输入验证错误漏洞 CWE-190 5.7 Medium 2020-07-31
CVE-2019-14865 grub2 grub2-set-bootflag实用程序安全漏洞 CWE-267 7.1 - 2019-11-29

All 26 known CVE vulnerabilities affecting grub2 with full Chinese analysis, references, and POCs where available.