CVE-2025-38676

highpriority · track · 41EPSS 0.004 · 36 %ileexploit · PoCDEEUNLRUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
0.42% (36th) EPSS
CVSS 7.8 · high
Is it mine?
111 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.8

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9
v3.16mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Hsecondary · CISA US
v3.16mediumAV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.16mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Hsecondary · Siemens ProductCERT DE
v3.17.4highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-805USCWE-805USCWE-805USCWE-805US
04

exploits (1)

Public proof-of-concept and weaponised exploit code.

05

affected products (111)

Products and version ranges known to be affected.

showing 20 of 111
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0147Kwetsbaarheden verholpen in Siemens-productenNL2026-05-13csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in verschillende (OT-)producten. Het gaat onder andere om producten in de Siemens RUGGEDCOM-, SCALANCE-, SIMATIC-, SIMIT-, SINAMICS-, SIPROTEC-, SENTRON- en Solid Edge-productreeksen.

  • SSA-032379SSA-032379: Multiple Vulnerabilities in SIMATIC CN 4100 Before V5.02026-05-12csaf · siemens_psirtDE

    SIMATIC CN 4100 contains multiple vulnerabilities which could potentially lead to a compromise in availability, integrity and confidentiality. Siemens has released a new version for SIMATIC CN 4100 and recommends to update to the latest version.

  • WID-SEC-W-2025-1914Linux Kernel: Schwachstelle ermöglicht CodeausführungDeutsch2025-08-26csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle in Linux Kernel ausnutzen, um einen Denial of Service Zustand herbeizuführen und potenziell beliebigen Programmcode auszuführen.

  • ICSA-26-134-10Siemens SIMATIC2026-05-12icsa · cisa_csaf_otUS

    SIMATIC CN 4100 contains multiple vulnerabilities which could potentially lead to a compromise in availability, integrity and confidentiality. Siemens has released a new version for SIMATIC CN 4100 and recommends to update to the latest version.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otncsc_nlsiemens_psirtNVDCVE.orgMITRE
published 2025-08-26modified 2026-09-22
10

references (27)

External citations — patches, advisories, analysis.

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