CVE-2020-5310

Name: CVE-2020-5310
Creator: NVD / NIST
Published: 2020-01-03T01:15:11.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.98%

Last modified Jun 17, 2026

CVE-2020-5310 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.. EPSS estimates a 1.98% chance of exploitation in the next 30 days.

Description

libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.98%

77.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

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
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31

References

https://github.com/python-pillow/Pillow/commit/4e2def2539ec13e53a82e06c4b3daf00454100c4Patch, 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://github.com/python-pillow/Pillow/commit/4e2def2539ec13e53a82e06c4b3daf00454100c4Patch, 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

Timeline

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

Frequently Asked Questions

What is CVE-2020-5310?

libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.

How severe is CVE-2020-5310?

CVE-2020-5310 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5310?

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-2020-5310?

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

Scan your code now

Source: NVD / NIST