CVE-2024-53147: exfat: fix out-of-bounds access of directory entries
Vulnerability summary
CVE-2024-53147 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.7% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 19 · Related 20Timeline
- 24-12-2024PublishedVulnerability first disclosed.
- 30-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: exfat: fix out-of-bounds access of directory entries In the case of the directory size is greater than or equal to the cluster size, if start_clu becomes an EOF cluster(an invalid cluster) due to file system corruption, then the directory entry where ei->hint_femp.eidx hint is outside the directory, resulting in an out-of-bounds access, which may cause further file system corruption. This commit adds a check for start_clu, if it is an invalid cluster, the file or directory will be treated as empty.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HDiffers
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HDiffers
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
Increase +0.04 pp
From 0.22% on 04-10-2026
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
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu123 products
- linuxAll versions (No fix recorded) | < 6.8.0-58.60
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1027.29
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 98e3572505a9ec550b5296c67c4517120356c8d6 | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 82dc96f0f4eec8afdde8467d21d1b6b989dbb20a | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < a0120d6463368378539ef928cf067d02372efb8c | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 3ddd1cb2b458ff6a193bc845f408dfff217db29e | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 184fa506e392eb78364d9283c961217ff2c0617b | 5.7
- linux_kernel≥ 5.7, < 6.11.11 | ≥ 6.12, < 6.12.2
Debian1 product
- linuxAll versions (No fix recorded) | < 6.12.3-1
3 vendors · 126 products
