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TI-2021-21477 Aliases CVE-2021-46760GHSA-qh8v-25c7-7m9h

Resource allocation without limits in AMD 3rd Gen AMD Ryzen™ Threadripper™ Processors…

Priority MEDIUM 50CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service, Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-770, CWE-119 and the CVSS impact.

Summary

A malicious or compromised UApp or ABL can send a malformed system call to the bootloader, which may result in an out-of-bounds memory access that may potentially lead to an attacker leaking sensitive information or achieving code execution.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00776 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AMD3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDTvarious—No fix listedCNA
AMDRyzen™ Threadripper™ PRO Processors “Castle Peak” WSvarious —No fix listedCNA
  • 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT VendorAMD Affected various Fixed in — No fix listed CNA
  • Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS VendorAMD Affected various Fixed in — No fix listed CNA

CPE configurations NVD · 28

CPEVersionsRoleVendor
cpe:2.3:o:amd:ryzen_3945wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*castlepeakwspi-swrx8_1.0.0.9VulnerableAMD
cpe:2.3:h:amd:ryzen_3945wx:-:*:*:*:*:*:*:*not specified by NVDRunning onAMD
cpe:2.3:o:amd:ryzen_3955wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*castlepeakwspi-swrx8_1.0.0.9VulnerableAMD
cpe:2.3:h:amd:ryzen_3955wx:-:*:*:*:*:*:*:*not specified by NVDRunning onAMD
cpe:2.3:o:amd:ryzen_3960x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*castlepeakwspi-swrx8_1.0.0.9VulnerableAMD
cpe:2.3:h:amd:ryzen_3960x:-:*:*:*:*:*:*:*not specified by NVDRunning onAMD
cpe:2.3:o:amd:ryzen_3970x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*castlepeakwspi-swrx8_1.0.0.9VulnerableAMD
cpe:2.3:h:amd:ryzen_3970x:-:*:*:*:*:*:*:*not specified by NVDRunning onAMD
cpe:2.3:o:amd:ryzen_3975wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*castlepeakwspi-swrx8_1.0.0.9VulnerableAMD
cpe:2.3:h:amd:ryzen_3975wx:-:*:*:*:*:*:*:*not specified by NVDRunning onAMD
  • cpe:2.3:o:amd:ryzen_3945wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:* Versions castlepeakwspi-swrx8_1.0.0.9 Vulnerable ·AMD
  • cpe:2.3:h:amd:ryzen_3945wx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
  • cpe:2.3:o:amd:ryzen_3955wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:* Versions castlepeakwspi-swrx8_1.0.0.9 Vulnerable ·AMD
  • cpe:2.3:h:amd:ryzen_3955wx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
  • cpe:2.3:o:amd:ryzen_3960x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:* Versions castlepeakwspi-swrx8_1.0.0.9 Vulnerable ·AMD
  • cpe:2.3:h:amd:ryzen_3960x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
  • cpe:2.3:o:amd:ryzen_3970x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:* Versions castlepeakwspi-swrx8_1.0.0.9 Vulnerable ·AMD
  • cpe:2.3:h:amd:ryzen_3970x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
  • cpe:2.3:o:amd:ryzen_3975wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:* Versions castlepeakwspi-swrx8_1.0.0.9 Vulnerable ·AMD
  • cpe:2.3:h:amd:ryzen_3975wx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
Show 18 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:amd:ryzen_3990x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*castlepeakwspi-swrx8_1.0.0.9VulnerableAMD
cpe:2.3:h:amd:ryzen_3990x:-:*:*:*:*:*:*:*not specified by NVDRunning onAMD
cpe:2.3:o:amd:ryzen_3995wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*castlepeakwspi-swrx8_1.0.0.9VulnerableAMD
cpe:2.3:h:amd:ryzen_3995wx:-:*:*:*:*:*:*:*not specified by NVDRunning onAMD
cpe:2.3:o:amd:ryzen_3945wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*chagallwspi-swrx8_1.0.0.2VulnerableAMD
cpe:2.3:o:amd:ryzen_3955wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*chagallwspi-swrx8_1.0.0.2VulnerableAMD
cpe:2.3:o:amd:ryzen_3960x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*chagallwspi-swrx8_1.0.0.2VulnerableAMD
cpe:2.3:o:amd:ryzen_3970x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*chagallwspi-swrx8_1.0.0.2VulnerableAMD
cpe:2.3:o:amd:ryzen_3975wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*chagallwspi-swrx8_1.0.0.2VulnerableAMD
cpe:2.3:o:amd:ryzen_3990x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*chagallwspi-swrx8_1.0.0.2VulnerableAMD
cpe:2.3:o:amd:ryzen_3995wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*chagallwspi-swrx8_1.0.0.2VulnerableAMD
cpe:2.3:o:amd:ryzen_3945wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*castlepeakpi-sp3r3_1.0.0.7VulnerableAMD
cpe:2.3:o:amd:ryzen_3955wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*castlepeakpi-sp3r3_1.0.0.7VulnerableAMD
cpe:2.3:o:amd:ryzen_3960x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*castlepeakpi-sp3r3_1.0.0.7VulnerableAMD
cpe:2.3:o:amd:ryzen_3970x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*castlepeakpi-sp3r3_1.0.0.7VulnerableAMD
cpe:2.3:o:amd:ryzen_3975wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*castlepeakpi-sp3r3_1.0.0.7VulnerableAMD
cpe:2.3:o:amd:ryzen_3990x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*castlepeakpi-sp3r3_1.0.0.7VulnerableAMD
cpe:2.3:o:amd:ryzen_3995wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*castlepeakpi-sp3r3_1.0.0.7VulnerableAMD
  • cpe:2.3:o:amd:ryzen_3990x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:* Versions castlepeakwspi-swrx8_1.0.0.9 Vulnerable ·AMD
  • cpe:2.3:h:amd:ryzen_3990x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
  • cpe:2.3:o:amd:ryzen_3995wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:* Versions castlepeakwspi-swrx8_1.0.0.9 Vulnerable ·AMD
  • cpe:2.3:h:amd:ryzen_3995wx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
  • cpe:2.3:o:amd:ryzen_3945wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:* Versions chagallwspi-swrx8_1.0.0.2 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3955wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:* Versions chagallwspi-swrx8_1.0.0.2 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3960x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:* Versions chagallwspi-swrx8_1.0.0.2 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3970x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:* Versions chagallwspi-swrx8_1.0.0.2 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3975wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:* Versions chagallwspi-swrx8_1.0.0.2 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3990x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:* Versions chagallwspi-swrx8_1.0.0.2 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3995wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:* Versions chagallwspi-swrx8_1.0.0.2 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3945wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:* Versions castlepeakpi-sp3r3_1.0.0.7 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3955wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:* Versions castlepeakpi-sp3r3_1.0.0.7 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3960x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:* Versions castlepeakpi-sp3r3_1.0.0.7 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3970x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:* Versions castlepeakpi-sp3r3_1.0.0.7 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3975wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:* Versions castlepeakpi-sp3r3_1.0.0.7 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3990x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:* Versions castlepeakpi-sp3r3_1.0.0.7 Vulnerable ·AMD
  • cpe:2.3:o:amd:ryzen_3995wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:* Versions castlepeakpi-sp3r3_1.0.0.7 Vulnerable ·AMD

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    AMD 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT, Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS — amd.com/en/corporate/product-security/bulletin/AMD-SB-4001

    10 records Highest priority Priority MEDIUM 6 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2021-21473 Improper input validation in AMD Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4Priority MEDIUM 46
    • TI-2021-21488 Improper input validation in AMD Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4Priority MEDIUM 41
    • TI-2021-21505 Out-of-bounds read in AMD Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4Priority MEDIUM 40

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46760
  2. 2026-10-03 Alias added: GHSA-qh8v-25c7-7m9h

References

  • TI-2023-07045 Improper initialization of variables in the DXE driver may allow a privileged user to… CVSS 3.1MEDIUM 5.5
  • TI-2023-07043 Improper initialization of variables in the DXE driver may allow a privileged user to… CVSS 3.1MEDIUM 4.4

Sources