7.1

CVE-2025-39853: debian debian_linux Out-of-bounds Read

CVSS: 7.1v3.1HighModified
AliasesUBUNTU-CVE-2025-39853DEBIAN-CVE-2025-39853
Published 19-09-2025Last modified 12-05-2026

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.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 39 · Related 35

Timeline

  1. 19-09-2025
    PublishedVulnerability first disclosed.
  2. 12-05-2026
    Last 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

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

20-09-202620-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected 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

References

36 links
Show all 36 references