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Fencer Vulns
high 8.2

CVE-2024-21925 json

Improper input validation within the AmdPspP2CmboxV2 driver may allow a privileged attacker to overwrite SMRAM, leading to arbitrary code e…

published 2025-02-11 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-19531

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

Improper input validation within the AmdPspP2CmboxV2 driver may allow a privileged attacker to overwrite SMRAM, leading to arbitrary code execution.

Patch / fix

  • AMD AMD Ryzen™ Embedded R1000 EmbeddedPI-FP5 1.2.0.F
  • AMD AMD Ryzen™ Embedded R2000 EmbeddedR2KPIFP5 1.0.0.5
  • AMD AMD Ryzen™ Embedded V1000 EmbeddedPI-FP5 1.2.0.F

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-21925 updated cvss 8.2

kernel: hw:amd: AmdPspP2CmboxV2 driver may allow a privileged attacker to overwrite SMRAM

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present “Available mitigation requires updating the BIOS (updating firmware of CPU). The bug affects hardware (processors of the AMD EPYC™ family).”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

  • AMD AMD EPYC™ 7001 Processors
  • AMD AMD EPYC™ 7002 Processors
  • AMD AMD EPYC™ 9004 Processors
  • AMD AMD EPYC™ 7003 Processors
  • AMD AMD Ryzen™ 3000 Series Desktop Processors
  • AMD AMD Ryzen™ 5000 Series Desktop Processors
  • AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics
  • AMD AMD Ryzen™ 7000 Series Desktop Processors
  • AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 4000 Series Desktop Processor with Radeon™ Graphics
  • AMD AMD Ryzen™ 8000 Series Processor with Radeon™ Graphics
  • AMD AMD Ryzen™ Threadripper™ 3000 Series Processors
  • AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors
  • AMD AMD Ryzen™ Threadripper™ PRO 5000WX- Series Desktop Processors
  • AMD AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors
  • AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics
  • AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 6000 Series Processor with Radeon™ Graphics
  • AMD AMD Ryzen™ 7035 Series Processor with Radeon™ Graphics
  • AMD AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 7000 Series Mobile Processors
  • AMD AMD EPYC™ Embedded 3000
  • AMD AMD EPYC™ Embedded 7002
  • AMD AMD EPYC™ Embedded 7003
  • AMD AMD EPYC™ Embedded 9004
  • AMD AMD Ryzen™ Embedded 5000
  • AMD AMD Ryzen™ Embedded 7000
  • AMD AMD Ryzen™ Embedded V2000
  • AMD AMD Ryzen™ Embedded V3000
  • AMD AMD Ryzen™ Embedded 8000
  • AMD AMD Ryzen™ Embedded R1000
  • AMD AMD Ryzen™ Embedded R2000
  • AMD AMD Ryzen™ Embedded V1000

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.