CVE-2025-64301

An out‑of‑bounds write vulnerability exists in the EMF functionality of Canva Affinity.

Verified by Precogs Threat Research
Last Updated: Mar 19, 2026
Base Score
7.8HIGH

Executive Summary

CVE-2025-64301 is a high severity vulnerability affecting binary-analysis. It is classified as Out-of-bounds Write. Ensure your systems and dependencies are patched immediately to mitigate exposure risks.

Precogs AI Insight

"Architecturally, this flaw occurs due to within An out‑of‑bounds write vulnerability, allowing bypassed validation checks on external interactions. An attacker can craft a specific payload to inject malicious logic that alters the execution flow of the application engine. The Precogs Binary SAST engine detects such memory corruption vulnerabilities to safeguard the application against payload injection."

Exploit Probability (EPSS)
Low (0.0%)
Public POC
Undisclosed
Exploit Probability
Elevated (52%)
Public POC
Available
Affected Assets
binary analysisCWE-787

What is this vulnerability?

CVE-2025-64301 is categorized as a critical Memory Corruption Vulnerability flaw. Based on our vulnerability intelligence, this issue occurs when the application fails to securely handle untrusted data boundaries.

An out‑of‑bounds write vulnerability exists in the EMF functionality of Canva Affinity. By using a specially crafted EMF file, an attacker could exploit th...

This architectural defect enables adversaries to bypass intended security controls, directly manipulating the application's execution state or data layer. Immediate strategic intervention is required.

Risk Assessment

MetricValue
CVSS Base Score7.8 (HIGH)
Vector StringCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
PublishedMarch 17, 2026
Last ModifiedMarch 19, 2026
Related CWEsCWE-787

Impact on Systems

Remote Code Execution: Adversaries may execute arbitrary code by overwriting memory regions.

Denial of Service: Memory corruption often leads to unrecoverable application crashes.

Information Disclosure: Out-of-bounds reads can expose adjacent memory containing sensitive data.

How to fix this issue?

Implement the following strategic mitigations immediately to eliminate the attack surface.

1. Memory-Safe Languages When possible, migrate parsing logic to memory-safe languages like Rust or Go.

2. Compiler Protections Ensure the binary is compiled with ASLR, DEP/NX, Stack Canaries, and RELRO.

3. Fuzz Testing Implement continuous fuzzing with AddressSanitizer (ASan) in the CI/CD pipeline.

Vulnerability Signature

// Generic Memory Corruption Vector (C/C++)
void process_input(char *user_data, size_t size) \{
    char buffer[256];
    // DANGEROUS: Unbounded memory operation
    memcpy(buffer, user_data, size); // size may exceed 256
    
    // SECURED: Bound-checked operation
    if (size \> sizeof(buffer)) \{
        size = sizeof(buffer);
    \}
    memcpy(buffer, user_data, size);
\}

References and Sources

Vulnerability Code Signature

Attack Data Flow

StageDetail
SourceNetwork packet or file input
VectorData exceeds the allocated buffer bounds during a copy operation
Sinkstrcpy(), memcpy(), or pointer arithmetic
ImpactMemory corruption, Remote Code Execution (RCE)

Vulnerable Code Pattern

// ❌ VULNERABLE: Out-of-bounds write
void process_data(char *input) {
    char buffer[64];
    // Taint sink: copies without bounds checking
    strcpy(buffer, input);
}

Secure Code Pattern

// ✅ SECURE: Bounded copy
void process_data(char *input) {
    char buffer[64];
    // Sanitized boundary check
    strncpy(buffer, input, sizeof(buffer) - 1);
    buffer[sizeof(buffer) - 1] = '\0';
}

How Precogs Detects This

Precogs Binary SAST engine explicitly uncovers memory boundary violations and unsafe memory management functions in compiled binaries.\n

Related Vulnerabilitiesvia CWE-787

Is your system affected?

Precogs AI detects CVE-2025-64301 in compiled binaries, LLMs, and application layers — even without source code access.