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TI-2021-18931 Aliases CVE-2021-42721GHSA-5cwc-v53c-rj65

Adobe Bridge Use After Free could lead to Arbitrary code execution

Priority MEDIUM 40CWE-416Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

Acrobat Bridge versions 11.1.1 and earlier are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Why it matters now

EPSS 0.03661 89th 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
AdobeBridgeup to 11.1.1; up to None—No fix listedCNA
  • Bridge VendorAdobe Affected up to 11.1.1; up to None Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:adobe:media_encoder:*:*:*:*:*:*:*:*up to 15.4VulnerableAdobe
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:adobe:media_encoder:*:*:*:*:*:*:*:* Versions up to 15.4 Vulnerable ·Adobe
  • 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-2021-42721
  2. 2026-10-03 Alias added: GHSA-5cwc-v53c-rj65

References

Advisory 1

  • TI-2019-05918 Out-of-bounds write in Adobe Media Encoder CVSS 3.1CRITICAL 9.8
  • TI-2019-05549 Use after free in Adobe Media Encoder CVSS 3.0HIGH 8.8
  • TI-2021-14520 Adobe Media Encoder Improper Memory Access When Parsing SVG Files Could Lead To Remote Code Execution CVSS 3.1HIGH 7.8
  • TI-2021-14465 Adobe Media Encoder Memory Corruption Could Lead To Remote Code Execution CVSS 3.1HIGH 7.8
  • TI-2020-03279 Out-of-bounds write in Adobe Media Encoder CVSS 3.1HIGH 7.8
  • TI-2019-05551 Out-of-bounds read in Adobe Media Encoder CVSS 3.0MEDIUM 6.5
See all 64 →

Sources

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