CVE-2024-57256: denx u-boot Integer Overflow or Wraparound
Modified
AliasesUBUNTU-CVE-2024-57256DEBIAN-CVE-2024-57256
Published 18-02-2025Last modified 12-05-2026
Vulnerability summary
CVE-2024-57256 is a high (CVSS 7.1) Integer Overflow or Wraparound vulnerability in denx u-boot. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 30.1% of scored vulnerabilities.
CVSS score
7.1/10
010
High · v3.1 (CVE.org)EPSS score
0.37%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7 · Related 6Timeline
- 18-02-2025PublishedVulnerability first disclosed.
- 12-05-2026Last modifiedVulnerability information updated.
Description
An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 7.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HSources4 sources · 6.8–7.1
- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · DebianEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- NVDNIST6.8MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.37% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu2 products
- u-bootAll versions (No fix recorded) | < 2022.01+dfsg-2ubuntu2.7 | < 2025.10-0ubuntu0.24.04.2
- u-boot-nezhaAll versions (No fix recorded)
Debian1 product
- u-boot< 2023.01+dfsg-2+deb12u2 | < 2025.01-1
Denx1 product
- u-boot< 2025.01-rc1 | ≤ 2024.10
3 vendors · 4 products
