Is CVE-2023-0216 in the CISA KEV catalog?

No. CVE-2023-0216 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-0216?

CVE-2023-0216 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-0216?

CVE-2023-0216 has an EPSS score of 1.85% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-0216?

Upgrade openssl on debian 12 to 3.0.8-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-0216

HIGHEPSS 76th pctl

7.5

CVSS v3

NVD

Description

An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. The result of the dereference is an application crash which could lead to a denial of service attack. The TLS implementation in OpenSSL does not call this function however third party applications might call these functions on untrusted data.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

opensslDebian

Fixed in:3.0.8-1CVE-2023-0216

libssl1.1Ubuntu

Fixed in:1.1.1-1ubuntu2.1~18.04.21USN-5844-1

Fixed in:1.1.1f-1ubuntu2.17USN-5844-1

libssl3Ubuntu

Fixed in:3.0.2-0ubuntu1.8USN-5844-1

Fixed in:3.0.5-2ubuntu2.1USN-5844-1

opensslUbuntu

Fixed in:1.1.1-1ubuntu2.1~18.04.21USN-5844-1

Fixed in:1.1.1f-1ubuntu2.17USN-5844-1

Fixed in:3.0.2-0ubuntu1.8USN-5844-1

Fixed in:3.0.5-2ubuntu2.1USN-5844-1

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.85%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

git.openssl.org

Vendor Advisory1

openssl.org

Other references2

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	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 2025-11-04.