CVE-2025-47873
📋 TL;DR
An out-of-bounds read vulnerability in Canva Affinity's EMF file processing allows attackers to read memory beyond allocated buffers via specially crafted EMF files. This could lead to sensitive information disclosure. Users of Canva Affinity software are affected.
💻 Affected Systems
- Canva Affinity
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Memory disclosure could expose sensitive data like credentials, encryption keys, or other application data in memory, potentially enabling further attacks.
Likely Case
Information disclosure of random memory contents, which could include fragments of sensitive data or application state.
If Mitigated
Limited impact with proper sandboxing and memory protection controls in place.
🎯 Exploit Status
Exploitation requires user interaction to open malicious EMF file. No public exploit code identified in provided references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references
Vendor Advisory: https://trust.canva.com/?tcuUid=1f728b0d-17f3-4c9c-97e9-6662b769eb62
Restart Required: Yes
Instructions:
1. Check Canva Affinity for updates. 2. Install latest version. 3. Restart application. 4. Verify patch installation.
🔧 Temporary Workarounds
Disable EMF file processing
allPrevent Canva Affinity from processing EMF files
File type restrictions
allBlock EMF files at email/web gateways
🧯 If You Can't Patch
- Restrict user permissions to limit impact of information disclosure
- Implement application sandboxing/containerization
🔍 How to Verify
Check if Vulnerable:
Check Canva Affinity version against vendor advisoryCheck Version:
Check within Canva Affinity application settings or about dialogVerify Fix Applied:
Verify Canva Affinity is updated to latest version and test with known malicious EMF file📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing EMF files
- Unusual memory access patterns
Network Indicators:
- Downloads of EMF files from untrusted sources
SIEM Query:
Process execution of Canva Affinity followed by file access to *.emf files