CVE-2020-18774

Name: CVE-2020-18774
Creator: NVD / NIST
Published: 2021-08-23T22:15:27.91+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.31%

Last modified Jun 17, 2026

CVE-2020-18774 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A float point exception in the printLong function in tags_int.cpp of Exiv2 0.27.99.0 allows attackers to cause a denial of service (DOS) via a crafted tif file.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.

Description

A float point exception in the printLong function in tags_int.cpp of Exiv2 0.27.99.0 allows attackers to cause a denial of service (DOS) via a crafted tif file.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.31%

67.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-369

Affected Software

Vendor	Product	Versions
Exiv2	Exiv2	0.27.99.0

References

https://github.com/Exiv2/exiv2/issues/759Exploit, Third Party Advisory
https://security.gentoo.org/glsa/202312-06
https://github.com/Exiv2/exiv2/issues/759Exploit, Third Party Advisory
https://security.gentoo.org/glsa/202312-06

Timeline

Published: Aug 23, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-18774?

A float point exception in the printLong function in tags_int.cpp of Exiv2 0.27.99.0 allows attackers to cause a denial of service (DOS) via a crafted tif file.

How severe is CVE-2020-18774?

CVE-2020-18774 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.

How do I fix CVE-2020-18774?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-18774?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST