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TI-2020-14976 Aliases CVE-2020-24439GHSA-h5w3-mrcg-5p55

Acrobat Reader DC for macOS Signature Validation Bypass

Priority LOW 15CWE-347Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-347.

Summary

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.

Why it matters now

EPSS 0.00638 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeAcrobat Readerup to 2017.011.30175; up to 2020.012.20048; up to 2020.001.30005; up to None—No fix listedCNA
  • Acrobat Reader VendorAdobe Affected up to 2017.011.30175; up to 2020.012.20048; up to 2020.001.30005; up to None Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*up to 20.001.30005VulnerableAdobe
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*up to 17.011.30175VulnerableAdobe
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*up to 20.012.20048VulnerableAdobe
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*up to 20.001.30005VulnerableAdobe
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*up to 17.011.30175VulnerableAdobe
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*up to 20.012.20048VulnerableAdobe
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* Versions up to 20.001.30005 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:* Versions up to 17.011.30175 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* Versions up to 20.012.20048 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:* Versions up to 20.001.30005 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:* Versions up to 17.011.30175 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* Versions up to 20.012.20048 Vulnerable ·Adobe
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-24439
  2. 2026-10-03 Alias added: GHSA-h5w3-mrcg-5p55
  3. 2026-10-24 EPSS moved to the 50th–90th percentile

References

Patch 1

  • TI-2014-00524 Adobe Reader and Acrobat 10.x before 10.1.11 and 11.x before 11.0.08 on Windows allow… KEVCVSS 3.1CRITICAL 9.8
  • TI-2013-02915 Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03… KEVCVSS 3.1CRITICAL 9.8
  • TI-2013-02389 Integer overflow in Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2011-02156 Unspecified vulnerability in the U3D component in Adobe Reader and Acrobat 10.1.1 and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-09626 Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution KEVCVSS 3.1HIGH 8.8
  • TI-2021-04123 Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution KEVCVSS 3.1HIGH 8.8
See all 1413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences