7.4

CVE-2022-47630: trustedfirmware trusted_firmware-a Out-of-bounds Read

CVSS: 7.4v3.1HighModified
AliasesUBUNTU-CVE-2022-47630DEBIAN-CVE-2022-47630
Published 16-01-2023Last modified 08-04-2025
Open JSON

Vulnerability summary

CVE-2022-47630 is a high (CVSS 7.4) Out-of-bounds Read vulnerability in trustedfirmware trusted_firmware-a. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.63%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-01-2023
    PublishedVulnerability first disclosed.
  2. 08-04-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.63% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.63%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • arm-trusted-firmwareAll versions (No fix recorded) | < 2.9.0+dfsg-3
Trustedfirmware1 product
Ubuntu1 product
  • arm-trusted-firmwareAll versions (No fix recorded)

3 vendors · 3 products

References

6 links