CVE-2021-40720: Ops CLI Deserialization of Untrusted Data leads to Abritrary Code Execution

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 9.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-15 · updated 2026-06-17
Weakness: CWE-502

Description

Ops CLI version 2.0.4 (and earlier) is affected by a Deserialization of Untrusted Data vulnerability to achieve arbitrary code execution when the checkout_repo function is called on a maliciously crafted file. An attacker can leverage this to execute arbitrary code on the victim machine.

Affected products

Adobe Ops-CLI: before 2.0.5 — fixed in 2.0.5

How to fix

Upgrade to a fixed version: Adobe Ops-CLI 2.0.5. Check the vendor advisory for mitigations.

References

https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html
https://helpx.adobe.com/security/products/ops_cli/apsb21-88.html

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