Vulnerability-Lookup

FKIE_CVE-2021-46760

Vulnerability from fkie_nvd - Published: 2023-05-09 20:15 - Updated: 2026-06-17 04:15

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

References

	URL	Tags
	psirt@amd.com	https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001	Vendor Advisory

Impacted products

Vendor	Product	Version
amd	ryzen_3945wx_firmware	castlepeakwspi-swrx8_1.0.0.9
amd	ryzen_3945wx	-
amd	ryzen_3955wx_firmware	castlepeakwspi-swrx8_1.0.0.9
amd	ryzen_3955wx	-
amd	ryzen_3960x_firmware	castlepeakwspi-swrx8_1.0.0.9
amd	ryzen_3960x	-
amd	ryzen_3970x_firmware	castlepeakwspi-swrx8_1.0.0.9
amd	ryzen_3970x	-
amd	ryzen_3975wx_firmware	castlepeakwspi-swrx8_1.0.0.9
amd	ryzen_3975wx	-
amd	ryzen_3990x_firmware	castlepeakwspi-swrx8_1.0.0.9
amd	ryzen_3990x	-
amd	ryzen_3995wx_firmware	castlepeakwspi-swrx8_1.0.0.9
amd	ryzen_3995wx	-
amd	ryzen_3945wx_firmware	chagallwspi-swrx8_1.0.0.2
amd	ryzen_3945wx	-
amd	ryzen_3955wx_firmware	chagallwspi-swrx8_1.0.0.2
amd	ryzen_3955wx	-
amd	ryzen_3960x_firmware	chagallwspi-swrx8_1.0.0.2
amd	ryzen_3960x	-
amd	ryzen_3970x_firmware	chagallwspi-swrx8_1.0.0.2
amd	ryzen_3970x	-
amd	ryzen_3975wx_firmware	chagallwspi-swrx8_1.0.0.2
amd	ryzen_3975wx	-
amd	ryzen_3990x_firmware	chagallwspi-swrx8_1.0.0.2
amd	ryzen_3990x	-
amd	ryzen_3995wx_firmware	chagallwspi-swrx8_1.0.0.2
amd	ryzen_3995wx	-
amd	ryzen_3945wx_firmware	castlepeakpi-sp3r3_1.0.0.7
amd	ryzen_3945wx	-
amd	ryzen_3955wx_firmware	castlepeakpi-sp3r3_1.0.0.7
amd	ryzen_3955wx	-
amd	ryzen_3960x_firmware	castlepeakpi-sp3r3_1.0.0.7
amd	ryzen_3960x	-
amd	ryzen_3970x_firmware	castlepeakpi-sp3r3_1.0.0.7
amd	ryzen_3970x	-
amd	ryzen_3975wx_firmware	castlepeakpi-sp3r3_1.0.0.7
amd	ryzen_3975wx	-
amd	ryzen_3990x_firmware	castlepeakpi-sp3r3_1.0.0.7
amd	ryzen_3990x	-
amd	ryzen_3995wx_firmware	castlepeakpi-sp3r3_1.0.0.7
amd	ryzen_3995wx	-

JSON

To clipboard

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which may result in an out-of-bounds\nmemory access that may potentially lead to an attacker leaking sensitive\ninformation or achieving code execution.\n\n\n\n\n"
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  "id": "CVE-2021-46760",
  "lastModified": "2026-06-17T04:15:28.627",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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        "impactScore": 5.9,
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        "type": "Primary"
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          "baseScore": 9.8,
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
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  "published": "2023-05-09T20:15:12.283",
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      "type": "Secondary"
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}

CVE-2021-46760 (GCVE-0-2021-46760)

Vulnerability from cvelistv5 – Published: 2023-05-09 19:01 – Updated: 2025-01-27 17:29

Summary

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-27 17:28 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

AMD mitre root Scorecard

References

1 reference

URL	Tags
https://www.amd.com/en/corporate/product-security…	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
AMD	3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT	Affected: various
AMD	Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS	Affected: various

Date Public

2023-05-09 16:30

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2021-46760

CVE-2021-46760 (GCVE-0-2021-46760)

Tags

Sightings

Nomenclature

Related by attack behaviour