CVE-2021-42917

Name: CVE-2021-42917
Creator: NVD / NIST
Published: 2021-11-01T19:15:07.91+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.87%

Last modified Jun 17, 2026

CVE-2021-42917 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Buffer overflow vulnerability in Kodi xbmc up to 19.0, allows attackers to cause a denial of service due to improper length of values passed to istream.. EPSS estimates a 1.87% chance of exploitation in the next 30 days.

Description

Buffer overflow vulnerability in Kodi xbmc up to 19.0, allows attackers to cause a denial of service due to improper length of values passed to istream.

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

1.87%

76.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Kodi	Kodi	< 19.0

References

https://github.com/fuzzard/xbmc/commit/80c8138c09598e88b4ddb6dbb279fa193bbb3237Patch, Third Party Advisory
https://github.com/xbmc/xbmc/commit/48730b64494798705d46dfccc4029bd36d072df3Patch, Third Party Advisory
https://github.com/xbmc/xbmc/issues/20305Exploit, Issue Tracking, Third Party Advisory
https://github.com/xbmc/xbmc/pull/20306Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00009.html
https://github.com/fuzzard/xbmc/commit/80c8138c09598e88b4ddb6dbb279fa193bbb3237Patch, Third Party Advisory
https://github.com/xbmc/xbmc/commit/48730b64494798705d46dfccc4029bd36d072df3Patch, Third Party Advisory
https://github.com/xbmc/xbmc/issues/20305Exploit, Issue Tracking, Third Party Advisory
https://github.com/xbmc/xbmc/pull/20306Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00009.html

Timeline

Published: Nov 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42917?

Buffer overflow vulnerability in Kodi xbmc up to 19.0, allows attackers to cause a denial of service due to improper length of values passed to istream.

How severe is CVE-2021-42917?

CVE-2021-42917 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.87% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42917?

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-2021-42917?

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

Scan your code now

Source: NVD / NIST