Is CVE-2024-45777 in the CISA KEV catalog?

No. CVE-2024-45777 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-45777?

CVE-2024-45777 has a CVSS v3 base score of 6.7 (MEDIUM).

What is the EPSS score for CVE-2024-45777?

CVE-2024-45777 has an EPSS score of 0.23% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-45777?

Upgrade grub2 on debian 12 to 2.06-13+deb12u2 or later. Fixes are available for 47 affected products.

CVE & CISA-KEV Catalog

CVE-2024-45777

MEDIUM

6.7

CVSS v3

NVD

Description

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention of secure boot protections.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

grub2Debian

Fixed in:2.06-13+deb12u2CVE-2024-45777

Fixed in:2.12-6CVE-2024-45777

grub2Red Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2Rocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-commonRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-commonRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-debuginfoRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-debuginfoRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-debugsourceRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-debugsourceRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-aa64Rocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-aa64Red Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-aa64-cdbootRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-aa64-cdbootRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-aa64-modulesRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-aa64-modulesRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-x64Rocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-x64Red Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-x64-cdbootRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-x64-cdbootRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-x64-modulesRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-efi-x64-modulesRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-emu-debuginfoRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-emu-debuginfoRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-pcRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-pcRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-pc-modulesRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-pc-modulesRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-ppc64leRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-ppc64leRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-ppc64le-modulesRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-ppc64le-modulesRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-toolsRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-toolsRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-debuginfoRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-debuginfoRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-efiRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-efiRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-efi-debuginfoRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-efi-debuginfoRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-extraRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-extraRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-extra-debuginfoRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-extra-debuginfoRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-minimalRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-minimalRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-minimal-debuginfoRocky

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

grub2-tools-minimal-debuginfoRed Hat / RHEL

Fixed in:1:2.06-114.el9_7RHSA-2025:20532

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.23%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Third-Party Advisory2

Other references1

access.redhat.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-29.