CVE-2024-45778: gnu grub2 Integer Overflow or Wraparound
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-45778DEBIAN-CVE-2024-45778
Published 03-03-2025Last modified 29-06-2026
Vulnerability summary
CVE-2024-45778 is a medium (CVSS 5.5) Integer Overflow or Wraparound vulnerability in gnu grub2. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.6% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.29%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 9Timeline
- 03-03-2025PublishedVulnerability first disclosed.
- 29-06-2026Last modifiedVulnerability information updated.
Description
A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to crash.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSources4 sources · 4.1–5.5
- CVE.orgCNA4.1MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
+0.01 pp
From 0.29% on 18-09-2026
18-09-202618-10-2026
EPSS score0.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu3 products
- grub2All versions (No fix recorded)
- grub2-signedAll versions (No fix recorded)
- grub2-unsignedAll versions (No fix recorded)
Redhat2 products
- enterprise_linuxEOL7.0 | 8.0 | 9.0
- openshift_container_platform4.0
Debian1 product
- grub2< 2.06-13+deb12u2 | < 2.12-6
Gnu1 product
- grub2≤ 2.12
4 vendors · 7 products
