CVE-2021-28677

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 82.2% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-06-02 15:18Z5 YR AGO

Last updated

2024-08-03 21:47Z2 YR AGO

Reserved

2021-03-18

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

cc8b1bc722a24831a96a299646bb265fca1bb5c60e444e22bf7da55fa98a4402

• pillow.readthedocs.iohttps://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28677-fix-eps-dos-on-openx_refsource_MISC
• github.comhttps://github.com/python-pillow/Pillow/pull/5377x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-77756994bahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202107-33https://security.gentoo.org/glsa/202107-33vendor-advisoryx_refsource_GENTOO
• lists.debian.org[debian-lts-announce] 20210722 [SECURITY] [DLA 2716-1] pillow security updatehttps://lists.debian.org/debian-lts-announce/2021/07/msg00018.htmlmailing-listx_refsource_MLIST