7.8

CVE-2025-38676: debian debian_linux Out-of-bounds Write

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2025-38676DEBIAN-CVE-2025-38676
Published 26-08-2025Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2025-38676 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 33% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.40%
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 45 · Related 41
DLA-4327-1DLA-4328-1DSA-6008-1DSA-6009-1OPENSUSE-SU-2025:20081-1SUSE-SU-2025:03600-1

Timeline

  1. 26-08-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Avoid stack buffer overflow from kernel cmdline While the kernel command line is considered trusted in most environments, avoid writing 1 byte past the end of "acpiid" if the "str" argument is maximum length.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

0.00 pp

From 0.40% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.40%

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

Ubuntu144 products
  • linuxAll versions (No fix recorded) | < 5.15.0-163.173 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1097.104 | < 6.8.0-1046.49
  • 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 | < 6.16.5-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ f2a5ec7f7b28f9b9cd5fac232ff51019a7f7b9e9, < a732502bf3bbe859613b6d7b2b0313b11f0474ac | ≥ c513043e0afe6a8ba79d00af358655afabb576d2, < 0ad8509b468fa1058f4f400a1829f29e4ccc4de8 | ≥ 2ae19ac3ea82a5b87a81c10adbb497c9e58bdd60, < 9ff52d3af0ef286535749e14e3fe9eceb39a8349 | ≥ b6b26d86c61c441144c72f842f7469bb686e1211, < 8f80c633cba144f721d38d9380f23d23ab7db10e | ≥ b6b26d86c61c441144c72f842f7469bb686e1211, < 4bdb0f78bddbfa77d3ab458a21dd9cec495d317a | ≥ b6b26d86c61c441144c72f842f7469bb686e1211, < 736db11c86f03e717fc4bf771d05efdf10d23acb | ≥ b6b26d86c61c441144c72f842f7469bb686e1211, < 8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdec | 5e97dc748d13fad582136ba0c8cec215c7aeeb17 | 63cd11165e5e0ea2012254c764003eda1f9adb7d | ≥ 5.10.175, < 5.10.241 | ≥ 5.15.103, < 5.15.190 | ≥ 6.1.16, < 6.1.149 | ≥ 5.4.237, < 5.5 | ≥ 6.2.3, < 6.3 | 6.3
  • linux_kernel≥ 5.4.237, < 5.5 | ≥ 5.10.175, < 5.10.241 | ≥ 5.15.103, < 5.15.190 | ≥ 6.1.16, < 6.1.149 | ≥ 6.2.3, < 6.6.103 | ≥ 6.7, < 6.12.44 | ≥ 6.13, < 6.16.4 | 6.17:rc1 | 6.17:rc2

3 vendors · 148 products

References

40 links
Show all 40 references