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CVE Vulnerabilities

CVE-2025-61662

Use After Free

Published: Nov 18, 2025 | Modified: Mar 19, 2026
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
7.8 MODERATE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2025-61662
CWEhttps://cwe.mitre.org/data/definitions/416.html

A Use-After-Free vulnerability has been discovered in GRUBs gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
Grub2Gnu*2.14 (including)
Red Hat Enterprise Linux 10RedHatgrub2-1:2.12-29.el10_1.2*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatgrub2-1:2.12-15.el10_0.2*
Red Hat Enterprise Linux 8RedHatgrub2-1:2.02-170.el8_10.1*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatgrub2-1:2.02-87.el8_2.14*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatgrub2-1:2.02-99.el8_4.13*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatgrub2-1:2.02-99.el8_4.13*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatgrub2-1:2.02-123.el8_6.19*
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRedHatgrub2-1:2.02-123.el8_6.19*
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRedHatgrub2-1:2.02-123.el8_6.19*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatgrub2-1:2.02-152.el8_8.3*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatgrub2-1:2.02-152.el8_8.3*
Red Hat Enterprise Linux 9RedHatgrub2-1:2.06-114.el9_7.1*
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRedHatgrub2-1:2.06-61.el9_2.11*
Red Hat Enterprise Linux 9.4 Extended Update SupportRedHatgrub2-1:2.06-86.el9_4.4*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatgrub2-1:2.06-105.el9_6.1*
Grub2Ubuntuesm-infra-legacy/trusty*
Grub2-signedUbuntuesm-infra-legacy/trusty*
Grub2-signedUbuntuplucky*
Grub2-unsignedUbuntuplucky*

Potential Mitigations

References

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