Memory disclosure via unchecked EMF bitmap offset
Published Mar 17, 2026 · Updated Mar 17, 2026
Out-of-bounds read in Canva Affinity for Windows before 3.1.0 allows attackers to disclose process memory through a crafted EMF file. Affinity's EMR_BITBLT parser adds the unvalidated offBmiSrc field to the record pointer even when the offset exceeds recordSize, then accesses the resulting source bitmap header address. A user must open or import the file; the invalid address can crash the process, while a successful read exposes arbitrary memory within that process.
Summary
What happened
Out-of-bounds read in Canva Affinity for Windows before 3.1.0 allows attackers to disclose process memory through a crafted EMF file. Affinity's EMR_BITBLT parser adds the unvalidated offBmiSrc field to the record pointer even when the offset exceeds recordSize, then accesses the resulting source bitmap header address. A user must open or import the file; the invalid address can crash the process, while a successful read exposes arbitrary memory within that process.
The record
- CVE
- CVE-2025-64776
- Published
- Mar 17, 2026
- Updated
- Mar 17, 2026
- Vendor
- Pexels
- Product
- Affinity
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 17, 2026CVE publishedPublication date reported by the CVE source.
- Mar 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <3.1.0 (March 26)
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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