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CVE-2020-24439

Acrobat Reader DC for macOS Signature Validation Bypass

LOW

2.8

CVSS Score

Published: November 5, 2020 at 07:32 PM UTC

Updated: June 17, 2026 at 03:05 AM UTC

3 products affected across 1 vendorAcrobat ReaderAcrobatAcrobat DC· also runs on 2 platforms

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Severity

LOW2.8

Exploit prediction

EPSS 0.6%

Description

Acrobat Reader DC for macOS versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) are affected by a security feature bypass. While the practical security impact is minimal, a defense-in-depth fix has been implemented to further harden the Adobe Reader update process.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Acrobat · Adobe

95%

v ≤ 20.001.30005

apple-macos (environment) · microsoft-windows (environment)

Acrobat DC · Adobe

95%

v ≤ 17.011.30175v ≤ 20.012.20048

apple-macos (environment) · microsoft-windows (environment)

Acrobat Reader · Adobe

95%

v ≤ 20.001.30005v ≤ 2017.011.30175v ≤ 2020.001.30005v ≤ 2020.012.20048

apple-macos (environment) · microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

95%

Windows · Microsoft

95%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://helpx.adobe.com/security/products/acrobat/apsb20-67.html

References (1)

x_refsource_MISCPatchVendor Advisory

Source: [email protected]

https://helpx.adobe.com/security/products/acrobat/apsb20-67.html

CVSS

2.8LOWadobe

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-347

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