CVE-2019-14853

Name: CVE-2019-14853
Creator: NVD / NIST
Published: 2019-11-26T13:15:10.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.50%

Last modified Jun 17, 2026

CVE-2019-14853 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service.. EPSS estimates a 2.50% chance of exploitation in the next 30 days.

Description

An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.50%

82.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Python-Ecdsa Project	Python-Ecdsa	< 0.13.3

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853Issue Tracking, Third Party Advisory
https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3Release Notes
https://seclists.org/bugtraq/2019/Dec/33
https://www.debian.org/security/2019/dsa-4588
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853Issue Tracking, Third Party Advisory
https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3Release Notes
https://seclists.org/bugtraq/2019/Dec/33
https://www.debian.org/security/2019/dsa-4588

Timeline

Published: Nov 26, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-14853?

How severe is CVE-2019-14853?

CVE-2019-14853 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.50% probability of exploitation in the next 30 days.

How do I fix CVE-2019-14853?

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-2019-14853?

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

Scan your code now

Source: NVD / NIST