CVE-2025-37973: linux Out-of-bounds Read
Vulnerability summary
CVE-2025-37973 is a high (CVSS 8.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 32 · Related 30Timeline
- 20-05-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation Currently during the multi-link element defragmentation process, the multi-link element length added to the total IEs length when calculating the length of remaining IEs after the multi-link element in cfg80211_defrag_mle(). This could lead to out-of-bounds access if the multi-link element or its corresponding fragment elements are the last elements in the IEs buffer. To address this issue, correctly calculate the remaining IEs length by deducting the multi-link element end offset from total IEs end offset.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:A/AC:L/PR:N/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:HDiffers
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HDiffers
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
-0.01 pp
From 0.25% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu118 products
- linux< 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10, < 73dde269a1a43e6b1aa92eba13ad2df58bfdd38e | ≥ 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10, < 9423f6da825172b8dc60d4688ed3d147291c3be9 | ≥ 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10, < e1c6d0c6199bd5f4cfc7a66ae7032b6e805f904d | ≥ 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10, < 023c1f2f0609218103cbcb48e0104b144d4a16dc | 6.5
- linux_kernel≥ 6.5, < 6.6.91 | ≥ 6.7, < 6.12.29 | ≥ 6.13, < 6.14.7 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5
Debian1 product
- linux< 6.12.29-1
3 vendors · 121 products
