Is CVE-2023-0645 in the CISA KEV catalog?

No. CVE-2023-0645 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-0645?

CVE-2023-0645 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-0645?

CVE-2023-0645 has an EPSS score of 0.80% (52th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-0645?

Upgrade jpeg-xl on debian 12 to 0.7.0-10+deb12u1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2023-0645

MEDIUM

5.3

CVSS v3

NVD

Description

An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159

CWE-125Out-of-bounds Read

How to fix

Remediation Available

jpeg-xlDebian

Fixed in:0.7.0-10+deb12u1CVE-2023-0645

Fixed in:0.8.2-4CVE-2023-0645

jpeg-xlUbuntu

Fixed in:0.7.0-10.2ubuntu6.1USN-7637-1

libjpegxl-javaUbuntu

Fixed in:0.7.0-10.2ubuntu6.1USN-7637-1

libjxl-toolsUbuntu

Fixed in:0.7.0-10.2ubuntu6.1USN-7637-1

libjxl0.7Ubuntu

Fixed in:0.7.0-10.2ubuntu6.1USN-7637-1

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.80%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Patch2

Other references1

openwall.com

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

Embed a live status badge for CVE-2023-0645

Markdown

[![CVE-2023-0645](https://tridentstack.com/cve/badge/CVE-2023-0645.svg)](https://tridentstack.com/cve/CVE-2023-0645)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-0645"><img src="https://tridentstack.com/cve/badge/CVE-2023-0645.svg" alt="CVE-2023-0645"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2026-06-29.