Is CVE-2022-47630 in the CISA KEV catalog?

No. CVE-2022-47630 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-47630?

CVE-2022-47630 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2022-47630?

CVE-2022-47630 has an EPSS score of 0.63% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-47630?

Upgrade arm-trusted-firmware on debian 13 to 2.9.0+dfsg-3 or later.

CVE & CISA-KEV Catalog

CVE-2022-47630

HIGH

7.4

CVSS v3

NVD

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.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

arm-trusted-firmwareDebian

Fixed in:2.9.0+dfsg-3CVE-2022-47630

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.63%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Patch2

Vendor Advisory1

trustedfirmware.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-05.