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Vulnerability details: VCID-burc-br9n-h3fg
Vulnerability ID VCID-burc-br9n-h3fg
Aliases CVE-2021-40720
GHSA-x23q-4j9j-9cxw
PYSEC-2021-380
Summary Ops CLI Deserialization of Untrusted Data vulnerability
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-502 Deserialization of Untrusted Data
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
epss 0.15132 https://api.first.org/data/v1/epss?cve=CVE-2021-40720
epss 0.15132 https://api.first.org/data/v1/epss?cve=CVE-2021-40720
cvssv3.1 9.8 https://github.com/adobe/ops-cli
cvssv4 9.3 https://github.com/adobe/ops-cli
generic_textual CRITICAL https://github.com/adobe/ops-cli
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-x23q-4j9j-9cxw
cvssv3.1 9.8 https://github.com/pypa/advisory-database/tree/main/vulns/ops-cli/PYSEC-2021-380.yaml
cvssv4 9.3 https://github.com/pypa/advisory-database/tree/main/vulns/ops-cli/PYSEC-2021-380.yaml
generic_textual CRITICAL https://github.com/pypa/advisory-database/tree/main/vulns/ops-cli/PYSEC-2021-380.yaml
cvssv3.1 9.8 https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html
cvssv4 9.3 https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html
generic_textual CRITICAL https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2021-40720
cvssv4 9.3 https://nvd.nist.gov/vuln/detail/CVE-2021-40720
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2021-40720
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-40720
https://github.com/adobe/ops-cli
https://github.com/pypa/advisory-database/tree/main/vulns/ops-cli/PYSEC-2021-380.yaml
https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html
CVE-2021-40720 https://nvd.nist.gov/vuln/detail/CVE-2021-40720
GHSA-x23q-4j9j-9cxw https://github.com/advisories/GHSA-x23q-4j9j-9cxw
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/adobe/ops-cli
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/adobe/ops-cli
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/ops-cli/PYSEC-2021-380.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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/ops-cli/PYSEC-2021-380.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-40720
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-40720
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.94749
EPSS Score 0.15132
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T20:31:12.008402+00:00 GHSA Importer Import https://github.com/advisories/GHSA-x23q-4j9j-9cxw 38.6.0