CVE-2025-39853: debian debian_linux Out-of-bounds Read
Vulnerability summary
CVE-2025-39853 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 39 · Related 35Timeline
- 19-09-2025PublishedVulnerability first disclosed.
- 12-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
CVSS metrics
3 scores · 3 sources · 1 version- 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
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
0.00 pp
From 0.16% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu147 products
- linuxAll versions (No fix recorded) | < 5.15.0-163.173 | < 6.8.0-106.106
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1097.104 | < 6.8.0-1050.53
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.153-1 | < 6.12.48-1 | < 6.16.6-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ e3219ce6a775468368fb270fae3eb82a6787b436, < 971feafe157afac443027acdc235badc6838560b | ≥ e3219ce6a775468368fb270fae3eb82a6787b436, < 3c6fb929afa313d9d11f780451d113f73922fe5d | ≥ e3219ce6a775468368fb270fae3eb82a6787b436, < 1eadabcf5623f1237a539b16586b4ed8ac8dffcd | ≥ e3219ce6a775468368fb270fae3eb82a6787b436, < e2a5e74879f9b494bbd66fa93f355feacde450c7 | ≥ e3219ce6a775468368fb270fae3eb82a6787b436, < fb216d980fae6561c7c70af8ef826faf059c6515 | ≥ e3219ce6a775468368fb270fae3eb82a6787b436, < 66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf | ≥ e3219ce6a775468368fb270fae3eb82a6787b436, < 9c21fc4cebd44dd21016c61261a683af390343f8 | ≥ e3219ce6a775468368fb270fae3eb82a6787b436, < a556f06338e1d5a85af0e32ecb46e365547f92b9 | 4.6
- linux_kernel≥ 4.6, < 5.4.299 | ≥ 5.5, < 5.10.243 | ≥ 5.11, < 5.15.192 | ≥ 5.16, < 6.1.151 | ≥ 6.2, < 6.6.105 | ≥ 6.7, < 6.12.46 | ≥ 6.13, < 6.16.6 | 6.17:rc1 | 6.17:rc2 | 6.17:rc3 | 6.17:rc4
3 vendors · 151 products