CVE-2020-5313

Name: CVE-2020-5313
Creator: NVD / NIST
Published: 2020-01-03T01:15:11.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 2.75%

Last modified Jun 17, 2026

CVE-2020-5313 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.. EPSS estimates a 2.75% chance of exploitation in the next 30 days.

Description

libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

2.75%

84.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Python	Pillow	< 6.2.2
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31

References

https://github.com/python-pillow/Pillow/commit/a09acd0decd8a87ccce939d5ff65dab59e7d365bPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MMU3WT2X64GS5WHDPKKC2WZA7UIIQ3A/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3DUMIBUYGJRAVJCTFUWBRLVQKOUTVX5P/
https://pillow.readthedocs.io/en/stable/releasenotes/6.2.2.htmlRelease Notes, Third Party Advisory
https://usn.ubuntu.com/4272-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4631Third Party Advisory
https://github.com/python-pillow/Pillow/commit/a09acd0decd8a87ccce939d5ff65dab59e7d365bPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MMU3WT2X64GS5WHDPKKC2WZA7UIIQ3A/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3DUMIBUYGJRAVJCTFUWBRLVQKOUTVX5P/
https://pillow.readthedocs.io/en/stable/releasenotes/6.2.2.htmlRelease Notes, Third Party Advisory
https://usn.ubuntu.com/4272-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4631Third Party Advisory

Timeline

Published: Jan 3, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5313?

libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.

How severe is CVE-2020-5313?

CVE-2020-5313 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 2.75% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5313?

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-2020-5313?

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

Scan your code now

Source: NVD / NIST