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CVE-2021-25293

24
FAUCET Score

CVE-2021-25293 is an out-of-bounds read vulnerability in Pillow versions prior to 8.1.1, affecting Python applications utilizing the library. With a CVSS score of 7.5 (High), this vulnerability can be exploited remotely with low attack complexity, potentially leading to a denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.1.1CPE matchmatch criteria
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.60%
Probability of exploitation in next 30 days
EPSS Percentile
73.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0160 is in the 55th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

pippatch availablevia ghsa
Product: PillowFixed in: 8.1.1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: python-pillow-0:5.1.1-16.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Quay 3Fixed in: quay/quay-rhel8:v3.6.0-62
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: python-pillow

Vendor Advisories (2)

pipGHSA-p43w-g3c5-g5mqhigh

Out of bounds read in Pillow

Mar 29, 2021
redhatCVE-2021-25293Moderate

python-pillow: Out-of-bounds read in SGI RLE image reader

Feb 28, 2021

References

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