CVE-2022-23960

Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.

CVSS 3.1

5.6CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-25)

Published

2022-03-13

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• arm:cortex-a57_firmware
• arm:cortex-a65_firmware
• arm:cortex-a65ae_firmware
• arm:cortex-a710_firmware
• arm:cortex-a72_firmware
• arm:cortex-a73_firmware
• arm:cortex-a75_firmware
• arm:cortex-a76_firmware
• arm:cortex-a76ae_firmware
• arm:cortex-a77_firmware
• arm:cortex-a78_firmware
• arm:cortex-a78ae_firmware
• arm:cortex-r7_firmware
• arm:cortex-r8_firmware
• arm:cortex-x1_firmware
• arm:cortex-x2_firmware
• arm:neoverse-e1_firmware
• arm:neoverse-v1_firmware
• arm:neoverse_n1_firmware
• arm:neoverse_n2_firmware
• debian:debian_linux
• xen:xen

References

• http://www.openwall.com/lists/oss-security/2022/03/18/2
• https://developer.arm.com/support/arm-security-updates
• https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
• https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
• https://www.debian.org/security/2022/dsa-5173

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