CVE-2022-47630

Name: CVE-2022-47630
Creator: NVD / NIST
Published: 2023-01-16T16:15:10.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2022-47630 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing boot certificates. This affects downstream use of get_ext and auth_nvctr. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing boot certificates. This affects downstream use of get_ext and auth_nvctr. Attackers might be able to trigger dangerous read side effects or obtain sensitive information about microarchitectural state.

Metrics

CVSS 3.1

7.4/10

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

EPSS Probability

0.63%

45.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Trustedfirmware	Trusted Firmware-A	>= 1.2, <= 2.8

References

http://www.openwall.com/lists/oss-security/2023/01/16/8Mailing List, Patch, Third Party Advisory
https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-10.htmlPatch, Vendor Advisory
https://www.trustedfirmware.org/news/Vendor Advisory
http://www.openwall.com/lists/oss-security/2023/01/16/8Mailing List, Patch, Third Party Advisory
https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-10.htmlPatch, Vendor Advisory
https://www.trustedfirmware.org/news/Vendor Advisory

Timeline

Published: Jan 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-47630?

How severe is CVE-2022-47630?

CVE-2022-47630 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2022-47630?

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-2022-47630?

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

Scan your code now

Source: NVD / NIST