CVE-2025-29943

lowpriority · track · 10EPSS 0.002 · 13 %ileexploit · PoCDEEURU

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.23% (13th) EPSS

CVSS 3.2 · low

Is it mine?

22 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Write what were condition within AMD CPUs may allow an admin-privileged attacker to modify the configuration of the CPU pipeline potentially resulting in the corruption of the stack pointer inside an SEV-SNP guest.

cvss

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

4.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.8–4.6

v3.13.2lowAV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:Nsecondary · FSTEC (BDU) RU

v4.04.6mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:Nsecondary · ENISA EU

v4.04.6mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · psirt@amd.com

v4.01.8lowCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-123USCWE-123US

exploits (1)

Public proof-of-concept and weaponised exploit code.

fevar54/POC_CVE-2025-29943_Write-what-where-ConditionPoC de CVE-2025-29943 (StackWarp): corrupcion del stack en CPUs AMD Zen bajo SEV-SNP (write-what-where).PoC · poc_in_github

affected products (22)

Products and version ranges known to be affected.

AMD Prozessor EPYCall versionscert_bundDEcpe:/h:amd:amd_processor:epyc
AMD Prozessor EPYC Embeddedall versionscert_bundDEcpe:/h:amd:amd_processor:epyc_embedded
Dell PowerEdgeall versionscert_bundDEcpe:/h:dell:poweredge:-
Lenovo Computerall versionscert_bundDEcpe:/h:lenovo:computer:-
AMD AMD EPYC™ 8004 Series Processors< Genoa++_1.0.0.Henisa_euvdEU
AMD AMD EPYC™ 9004 Series Processors< Genoa++_1.0.0.Henisa_euvdEU
AMD AMD EPYC™ 9005 Series Processors< TurinPI_1.0.0.6enisa_euvdEU
AMD AMD EPYC™ Embedded 7003 Series Processors< EmbMilanPI-SP3 v9 1.0.0.Cenisa_euvdEU
AMD AMD EPYC™ Embedded 9005 Series Processors< EmbTurinPI-SP5_1.0.0.1enisa_euvdEU
Advanced Micro Devices Inc. AMD EPYC 7003 Seriesall versionsfstec_bduRU
Advanced Micro Devices Inc. AMD EPYC 8004 Seriesall versionsfstec_bduRU
Advanced Micro Devices Inc. AMD EPYC 9004 Seriesall versionsfstec_bduRU
Advanced Micro Devices Inc. AMD EPYC 9005 Seriesall versionsfstec_bduRU
Advanced Micro Devices Inc. AMD EPYC Embedded 8004all versionsfstec_bduRU
Advanced Micro Devices Inc. AMD EPYC Embedded 9004all versionsfstec_bduRU
Advanced Micro Devices Inc. AMD EPYC Embedded 9005 Series Processors≤ EmbTurinPI-SP5_1.0.0.1fstec_bduRU
Canonical Ltd. Ubuntu≤ 20.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 16.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 22.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 18.04.6 LTSfstec_bduRU

showing 20 of 22

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0136AMD EPYC-Prozessoren: Schwachstelle ermöglicht Manipulation von DatenDeutsch2026-01-15csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in AMD Prozessor ausnutzen, um Daten zu manipulieren.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-01-16modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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