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Vulnerability record · CVE-2021-25293 · published 19 March 2021

CVE-2021-25293: Python pillow out-of-bounds read vulnerability

Python · Pillow

An issue was discovered in Pillow before 8.1.1. There is an out-of-bounds read in SGIRleDecode.c.

7.5 CVSS 3.1 High EPSS 1.6% · top 25.2% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score, v2 5.0
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Pillow before 8.1.1. There is an out-of-bounds read in SGIRleDecode.c.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html Release NotesVendor Advisory
https://security.gentoo.org/glsa/202107-33 Third Party Advisory
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html Release NotesVendor Advisory
https://security.gentoo.org/glsa/202107-33 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-25293), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.