CVE-2020-23886

Name: CVE-2020-23886
Creator: NVD / NIST
Published: 2021-11-10T22:15:09.953+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2020-23886 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. XnView MP v0.96.4 was discovered to contain a heap overflow which allows attackers to cause a denial of service (DoS) via a crafted pict file. Related to a User Mode Write AV starting at ntdll!RtlpLowFragHeapFree.. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

XnView MP v0.96.4 was discovered to contain a heap overflow which allows attackers to cause a denial of service (DoS) via a crafted pict file. Related to a User Mode Write AV starting at ntdll!RtlpLowFragHeapFree.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.95%

56.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Xnview	Xnview Mp	<= 0.96.4

References

https://cwe.mitre.org/data/definitions/122.htmlTechnical Description
https://github.com/Aurorainfinity/vulnerabilities/tree/master/xnviewmpExploit, Third Party Advisory
https://www.xnview.com/en/xnviewmp/Product, Vendor Advisory
https://cwe.mitre.org/data/definitions/122.htmlTechnical Description
https://github.com/Aurorainfinity/vulnerabilities/tree/master/xnviewmpExploit, Third Party Advisory
https://www.xnview.com/en/xnviewmp/Product, Vendor Advisory

Timeline

Published: Nov 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-23886?

How severe is CVE-2020-23886?

CVE-2020-23886 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23886?

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-2020-23886?

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

Scan your code now

Source: NVD / NIST