High severity · published Aug 26, 2025
CVE-2025-38676
iommu/amd: Avoid stack buffer overflow from kernel cmdline
7.8
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.4.237 before 5.5; 5.10.175 before 5.10.241; 5.15.103 before 5.15.190; 6.1.16 before 6.1.149; 6.2.3 before 6.6.103; 6.7 before 6.12.44; +3 more · source: NVD
LI
Linux · Linux
f2a5ec7f7b28f9b9cd5fac232ff51019a7f7b9e9 before a732502bf3bbe859613b6d7b2b0313b11f0474ac; c513043e0afe6a8ba79d00af358655afabb576d2 before 0ad8509b468fa1058f4f400a1829f29e4ccc4de8; 2ae19ac3ea82a5b87a81c10adbb497c9e58bdd60 before 9ff52d3af0ef286535749e14e3fe9eceb39a8349; b6b26d86c61c441144c72f842f7469bb686e1211 before 8f80c633cba144f721d38d9380f23d23ab7db10e; b6b26d86c61c441144c72f842f7469bb686e1211 before 4bdb0f78bddbfa77d3ab458a21dd9cec495d317a; b6b26d86c61c441144c72f842f7469bb686e1211 before 736db11c86f03e717fc4bf771d05efdf10d23acb; +9 more · source: vendor
DL
Debian Linux · Debian
11.0 · source: NVD
SC
SIMATIC CN 4100 · Siemens
before V5.0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-38676
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-38676
Patch
https://git.kernel.org/stable/c/0ad8509b468fa1058f4f400a1829f29e4ccc4de8
Patch
https://git.kernel.org/stable/c/4bdb0f78bddbfa77d3ab458a21dd9cec495d317a
Patch
https://git.kernel.org/stable/c/736db11c86f03e717fc4bf771d05efdf10d23acb
Patch
https://git.kernel.org/stable/c/8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdec
Patch
https://git.kernel.org/stable/c/8f80c633cba144f721d38d9380f23d23ab7db10e
Patch
https://git.kernel.org/stable/c/9ff52d3af0ef286535749e14e3fe9eceb39a8349
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