CVE-2021-46760
CVE-2021-46760 is a critical-severity vulnerability in Amd Ryzen 3945wx Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Amd Ryzen 3945wx Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2021-46760?
- 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.
- How severe is CVE-2021-46760?
- CVE-2021-46760 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-46760 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-46760?
- CVE-2021-46760 primarily affects Amd Ryzen 3945wx Firmware. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-46760?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-46760 published?
- CVE-2021-46760 was published on 2023-05-09 and last updated on 2026-06-17.
References
Affected products (21)
- cpe:2.3:o:amd:ryzen_3945wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3955wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3960x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3970x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3975wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3990x_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3995wx_firmware:castlepeakwspi-swrx8_1.0.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3945wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3955wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3960x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3970x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3975wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3990x_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3995wx_firmware:chagallwspi-swrx8_1.0.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3945wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3955wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3960x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3970x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3975wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3990x_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3995wx_firmware:castlepeakpi-sp3r3_1.0.0.7:*:*:*:*:*:*:*
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