CVE-2023-53117: fs: prevent out-of-bounds array speculation when closing a file descriptor
Vulnerability summary
CVE-2023-53117 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.8% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 9Timeline
- 02-05-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: fs: prevent out-of-bounds array speculation when closing a file descriptor Google-Bug-Id: 114199369
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
11%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.21% 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.
Ubuntu117 products
- linuxAll versions (No fix recorded) | < 5.4.0-156.173 | < 5.15.0-79.86
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1107.115 | < 5.15.0-1042.47
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f31cd5da636682caea424fa1c22679016cbfc16b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3d5d9501b634fd268eb56428cda92cd317752d69 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6631c8da02cfad96c53b217cf647b511c7f34faf | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a759905de9cd6ec9ca08ceadf0920272772ed830 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f8cd8754a03a3748384ee438c572423643c9c315 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cec08b7d1ebcd3138d4658b3868ce26aeb1e8e06 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < eea8e4e056a5ffbeb539a13854c017d5d62c756a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 609d54441493c99f21c1823dfd66fa7f4c512ff4 | 2.6.12
- linux_kernel< 4.14.310 | ≥ 4.15, < 4.19.278 | ≥ 4.20, < 5.4.237 | ≥ 5.5, < 5.10.175 | ≥ 5.11, < 5.15.103 | ≥ 5.16, < 6.1.20 | ≥ 6.2, < 6.2.7 | 6.3:rc1
Debian1 product
- linux< 6.1.20-1
3 vendors · 120 products
