Is CVE-2021-29623 in the CISA KEV catalog?

No. CVE-2021-29623 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-29623?

CVE-2021-29623 has a CVSS v3 base score of 3.6 (LOW).

What is the EPSS score for CVE-2021-29623?

CVE-2021-29623 has an EPSS score of 1.10% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-29623?

Upgrade exiv2 on debian 11 to 0.27.3-3+deb11u2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-29623

LOW

3.6

CVSS v3

NVD

Description

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4.

CWE-908

How to fix

Remediation Available

exiv2Debian

Fixed in:0.27.3-3+deb11u2CVE-2021-29623

Fixed in:0.27.5-1CVE-2021-29623

exiv2Ubuntu

Fixed in:0.25-2.1ubuntu16.04.7+esm2USN-4964-1

Fixed in:0.25-3.1ubuntu0.18.04.9USN-4964-1

Fixed in:0.27.2-8ubuntu2.4USN-4964-1

libexiv2-14Ubuntu

Fixed in:0.25-2.1ubuntu16.04.7+esm2USN-4964-1

Fixed in:0.25-3.1ubuntu0.18.04.9USN-4964-1

libexiv2-27Ubuntu

Fixed in:0.27.2-8ubuntu2.4USN-4964-1

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 VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.10%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Patch2

Other references5

Related Vulnerabilities

Other CWE-908 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2023-24941	Critical	9.8	95%	-	Fix
CVE-2007-1751	High	9.3	61%	-	-
CVE-2008-0081	Critical	9.8	58%	-	-
CVE-2020-1934	Medium	5.3	52%	-	Fix
CVE-2011-1255	High	9.3	42%	-	-

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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 2024-11-21.