CVE-2021-26401 describes a medium-severity vulnerability affecting certain AMD CPUs where the LFENCE/JMP mitigation (V2-2) may not adequately address the Spectre variant 2 (CVE-2017-5715) speculative execution side-channel vulnerability. An attacker with local, low-privileged access could, with high attack complexity, potentially achieve high confidentiality impact by bypassing existing mitigations. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:amd:athlon_x4_940_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:amd:athlon_x4_950_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:amd:athlon_x4_970_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:amd:athlon_x4_835_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:amd:athlon_x4_845_firmware:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
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The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.