CVE-2025-43547 Overview
CVE-2025-43547 is an integer overflow vulnerability affecting Adobe Bridge versions 15.0.3, 14.1.6, and earlier. The flaw allows arbitrary code execution in the context of the current user when a victim opens a maliciously crafted file. The vulnerability requires local access and user interaction, limiting remote exploitation but enabling targeted attacks through social engineering. Adobe has issued a security advisory tracking this issue as APSB25-44. The flaw is categorized under [CWE-190] Integer Overflow or Wraparound.
Critical Impact
Successful exploitation grants attackers arbitrary code execution with the privileges of the logged-in user, enabling installation of malware, data theft, or further lateral movement.
Affected Products
- Adobe Bridge versions 15.0.3 and earlier (15.x branch)
- Adobe Bridge versions 14.1.6 and earlier (14.x branch)
- Installations on Apple macOS and Microsoft Windows
Discovery Timeline
- 2025-05-13 - CVE-2025-43547 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-43547
Vulnerability Analysis
The vulnerability resides in Adobe Bridge's file parsing logic. Adobe Bridge processes numerous media and metadata formats, and one of these parsers fails to validate arithmetic operations on size or length fields. When an attacker crafts a file with manipulated header values, the parser performs integer arithmetic that wraps around the maximum representable value.
This wraparound produces an undersized buffer allocation while the parser continues to write attacker-controlled data based on the original, larger size. The result is a heap corruption condition that attackers can leverage to redirect execution flow. The EPSS score of 0.235% indicates low predicted exploitation likelihood, though targeted attacks remain feasible.
Root Cause
The root cause is improper validation of integer arithmetic during file parsing, classified under [CWE-190]. Length, count, or offset values read from untrusted file content are used in size calculations without checks for overflow conditions. When these values exceed the data type's maximum, the computation wraps to a small or negative value, breaking the size invariants the code relies on for safe memory access.
Attack Vector
Exploitation requires an attacker to deliver a crafted file to a victim and convince them to open it in Adobe Bridge. Common delivery mechanisms include email attachments, watering-hole websites hosting media assets, and shared network drives used by creative teams. Because Adobe Bridge handles a wide range of media types, file extensions can be selected to match the target's normal workflow. Code execution occurs at the privilege level of the user running Bridge, which is typically a standard desktop account.
No verified public proof-of-concept exploit code is available. See the Adobe Bridge Security Advisory for vendor-supplied details.
Detection Methods for CVE-2025-43547
Indicators of Compromise
- Adobe Bridge processes (bridge.exe on Windows, Adobe Bridge on macOS) spawning unexpected child processes such as cmd.exe, powershell.exe, or shell binaries.
- Unusual file reads from temporary directories followed by network connections initiated by the Bridge process.
- Crash events or unhandled exceptions in Bridge correlated with opening files from untrusted sources.
Detection Strategies
- Monitor process lineage for Adobe Bridge spawning interpreters, scripting hosts, or living-off-the-land binaries.
- Inspect endpoint telemetry for memory protection violations or exception events originating from Bridge modules.
- Apply behavioral analytics to flag Bridge accessing sensitive directories or modifying autostart locations.
Monitoring Recommendations
- Collect EDR telemetry covering process creation, module loads, and file open events for Adobe Bridge across Windows and macOS endpoints.
- Alert on Adobe Bridge opening files from email-attachment paths, downloads folders, or removable media without prior user activity matching normal workflow.
- Correlate Bridge crashes with subsequent suspicious network egress to identify post-exploitation activity.
How to Mitigate CVE-2025-43547
Immediate Actions Required
- Update Adobe Bridge to the fixed versions published in Adobe security bulletin APSB25-44 on all Windows and macOS systems.
- Inventory endpoints running Bridge through software asset management to confirm patch coverage across creative workstations.
- Restrict opening of Bridge-supported file types received from untrusted sources until patches are deployed.
Patch Information
Adobe released fixed versions addressing CVE-2025-43547. Administrators should consult the Adobe Bridge Security Advisory APSB25-44 for the exact patched version numbers and download links. Deploy updates through the Adobe Creative Cloud desktop application or enterprise deployment tools.
Workarounds
- Train users to avoid opening Bridge-supported files originating from unverified email senders or web downloads.
- Apply application allowlisting or attack surface reduction rules that block Adobe Bridge from spawning command interpreters.
- Run Adobe Bridge under standard user accounts rather than accounts with administrative privileges to limit blast radius if exploited.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
