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Vulnerability details: VCID-b21b-ucpb-pbbv
Vulnerability ID VCID-b21b-ucpb-pbbv
Aliases BIT-pillow-2021-28675
CVE-2021-28675
GHSA-g6rj-rv7j-xwp4
PYSEC-2021-139
Summary An issue was discovered in Pillow before 8.2.0. PSDImagePlugin.PsdImageFile lacked a sanity check on the number of input layers relative to the size of the data block. This could lead to a DoS on Image.open prior to Image.load.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-233 Improper Handling of Parameters
CWE-252 Unchecked Return Value
CWE-20 Improper Input Validation
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-28675.json
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2021-28675
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 5.5 https://github.com/advisories/GHSA-g6rj-rv7j-xwp4
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-g6rj-rv7j-xwp4
generic_textual HIGH https://github.com/advisories/GHSA-g6rj-rv7j-xwp4
cvssv3.1 5.5 https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-139.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-139.yaml
cvssv3.1 5.5 https://github.com/python-pillow/Pillow
generic_textual HIGH https://github.com/python-pillow/Pillow
cvssv3.1 5.5 https://github.com/python-pillow/Pillow/pull/5377/commits/22e9bee4ef225c0edbb9323f94c26cee0c623497
generic_textual HIGH https://github.com/python-pillow/Pillow/pull/5377/commits/22e9bee4ef225c0edbb9323f94c26cee0c623497
cvssv3.1 5.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2021-28675
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2021-28675
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-28675
cvssv3.1 5.5 https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28675-fix-dos-in-psdimageplugin
generic_textual HIGH https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28675-fix-dos-in-psdimageplugin
cvssv3.1 5.5 https://security.gentoo.org/glsa/202107-33
generic_textual HIGH https://security.gentoo.org/glsa/202107-33
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-28675.json
https://api.first.org/data/v1/epss?cve=CVE-2021-28675
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28675
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/advisories/GHSA-g6rj-rv7j-xwp4
https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-139.yaml
https://github.com/python-pillow/Pillow
https://github.com/python-pillow/Pillow/pull/5377/commits/22e9bee4ef225c0edbb9323f94c26cee0c623497
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
https://nvd.nist.gov/vuln/detail/CVE-2021-28675
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28675-fix-dos-in-psdimageplugin
https://security.gentoo.org/glsa/202107-33
1958240 https://bugzilla.redhat.com/show_bug.cgi?id=1958240
989062 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989062
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
RHSA-2021:4149 https://access.redhat.com/errata/RHSA-2021:4149
USN-4963-1 https://usn.ubuntu.com/4963-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-28675.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/advisories/GHSA-g6rj-rv7j-xwp4
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-139.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/python-pillow/Pillow
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/python-pillow/Pillow/pull/5377/commits/22e9bee4ef225c0edbb9323f94c26cee0c623497
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-28675
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-28675
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28675-fix-dos-in-psdimageplugin
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://security.gentoo.org/glsa/202107-33
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.26195
EPSS Score 0.00088
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:16:21.012844+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/pillow/PYSEC-2021-139.yaml 37.0.0