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Vulnerability record · CVE-2022-46892 · published 15 February 2023

CVE-2022-46892: Amperecomputing ampere altra firmware improper access control vulnerability

Amperecomputing · Ampere Altra Firmware

In Ampere AltraMax and Ampere Altra before 2.10c, improper access controls allows the OS to reinitialize a disabled root complex.

9.8 CVSS 3.1 Critical EPSS 0.62% · top 52.3% CWE-284 · Improper access control
9.8CVSS 3.1 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

In Ampere AltraMax and Ampere Altra before 2.10c, improper access controls allows the OS to reinitialize a disabled root complex.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://amperecomputing.com/products/security-bulletins/root-complex-OS-re-enable Vendor Advisory
https://amperecomputing.com/products/security-bulletins/root-complex-OS-re-enable Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-32295Amperecomputing ampere altra firmware vulnerabilityOn Ampere Altra and AltraMax devices before SRP 1.09, the Altra reference design of UEFI accesses allows insecure access to SPI-NOR by the OS/hypervi…EPSS 1.3%7.8CVE-2022-37459Amperecomputing ampere altra firmware observable discrepancy vulnerabilityAmpere Altra devices before 1.08g and Ampere Altra Max devices before 2.05a allow attackers to control the predictions for return addresses and poten…EPSS 0.22%7.5CVE-2021-45454Amperecomputing ampere altra firmware vulnerabilityAmpere Altra before SRP 1.08b and Altra Max​ before SRP 2.05 allow information disclosure of power telemetry via HWmon.EPSS 0.72%6.5CVE-2022-35888Amperecomputing ampere altra max firmware observable discrepancy vulnerabilityAmpere Altra and Ampere Altra Max devices through 2022-07-15 allow attacks via Hertzbleed, which is a power side-channel attack that extracts secret …EPSS 0.70%4.7CVE-2022-25368Amperecomputing ampere altra max firmware vulnerabilitySpectre BHB is a variant of Spectre-v2 in which malicious code uses the shared branch history (stored in the CPU BHB) to influence mispredicted branc…EPSS 0.30%

Source: NIST National Vulnerability Database (record CVE-2022-46892), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.