CVE-2022-23960

Name: CVE-2022-23960
Creator: NVD / NIST
Published: 2022-03-13T00:15:07.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.6/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2022-23960 is a medium-severity vulnerability rated 5.6/10 on the CVSS scale. 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. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.6/10

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

EPSS Probability

0.50%

38.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Xen	Xen	All versions
Arm	Cortex-R7 Firmware	All versions
Arm	Cortex-R8 Firmware	All versions
Arm	Cortex-A57 Firmware	All versions
Arm	Cortex-A65 Firmware	All versions
Arm	Cortex-A65ae Firmware	All versions
Arm	Cortex-A710 Firmware	All versions
Arm	Cortex-A72 Firmware	All versions
Arm	Cortex-A73 Firmware	All versions
Arm	Cortex-A75 Firmware	All versions
Arm	Cortex-A76 Firmware	All versions
Arm	Cortex-A76ae Firmware	All versions
Arm	Cortex-A77 Firmware	All versions
Arm	Cortex-A78 Firmware	All versions
Arm	Cortex-A78ae Firmware	All versions
Arm	Cortex-X1 Firmware	All versions
Arm	Cortex-X2 Firmware	All versions
Arm	Neoverse-E1 Firmware	All versions
Arm	Neoverse-V1 Firmware	All versions
Arm	Neoverse N1 Firmware	All versions
Arm	Neoverse N2 Firmware	All versions
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

http://www.openwall.com/lists/oss-security/2022/03/18/2Mailing List, Patch, Third Party Advisory
https://developer.arm.com/support/arm-security-updatesVendor Advisory
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabilityMitigation, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2022/dsa-5173Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/03/18/2Mailing List, Patch, Third Party Advisory
https://developer.arm.com/support/arm-security-updatesVendor Advisory
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabilityMitigation, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2022/dsa-5173Third Party Advisory

Timeline

Published: Mar 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23960?

How severe is CVE-2022-23960?

CVE-2022-23960 has a CVSS score of 5.6/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23960?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-23960?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST