CVE-2021-25288

mediumpriority · track · 37EPSS 0.024 · 84 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
2.39% (84th) EPSS
CVSS 6.4 · medium
Is it mine?
12 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-26

An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_gray_i.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.4–9.1

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.2
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · OSV
v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125US
03

affected products (12)

Products and version ranges known to be affected.

04

advisories (4)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2022-1835Red Hat Enterprise Linux (python-pillow): Mehrere SchwachstellenDeutsch2021-11-09csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux in python-pillow ausnutzen, um einen Denial of Service Angriff durchzuführen und vertrauliche Informationen offenzulegen.

  • GHSA-rwv7-3v45-hg29Pillow Out-of-bounds Read vulnerability2021-06-08ghsa · osvUS

    An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_gray_i. This dates to Pillow 2.4.0.

  • BIT-pillow-2021-252882024-03-06vendor · osvUS

    An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_gray_i.

  • PYSEC-2021-1382021-06-02vendor · osvUS

    An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_gray_i.

05

also known as (7)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvcert_bundnvdNVDCVE.orgMITRE
published 2021-06-02modified 2026-06-17
08

references (20)

External citations — patches, advisories, analysis.

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