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CVE-2026-27269 is an out-of-bounds read vulnerability affecting Adobe Premiere Pro versions 25.5 and earlier. The flaw exists in how the application parses specially crafted files, where the software fails to properly validate memory boundaries when processing untrusted input. When Premiere Pro attempts to read from a memory buffer while handling a malicious file, it can read past the end of an allocated memory structure, violating the intended bounds of the buffer. This out-of-bounds read operation can cause the application to access adjacent memory regions that may contain sensitive data or executable code. An attacker can craft a malicious file that triggers this memory corruption during parsing, potentially leading to arbitrary code execution within the context of the currently logged-in user. The vulnerability requires user interaction, as the victim must open the malicious file in Premiere Pro for exploitation to occur. According to Adobe’s CVSS scoring, this vulnerability carries a base score of 7.8 (HIGH) with the vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating local access required, low attack complexity, no privileges needed, user interaction required, and high impact on confidentiality, integrity, and availability .
dailycve form:
Platform: Adobe Premiere Pro
Version: 25.5 and earlier
Vulnerability: Out-of-bounds read (CWE-125)
Severity: High (CVSS 7.8)
date: March 10, 2026
Prediction: Patch released March 2026
What Undercode Say:
Analytics
- Vulnerability disclosed as part of Adobe March 2026 Patch Tuesday
- Assigned CVE ID: CVE-2026-27269
- Published in NVD: March 10, 2026
- Last modified: March 12, 2026
- Assigned by: Adobe Systems Incorporated
- Vulnerability type: Out-of-bounds Read (CWE-125)
- Attack vector: Local (requires file opening)
- User interaction: Required (victim opens file)
- Confidentiality impact: High
- Integrity impact: High
- Availability impact: High
- Remediation available: Yes (APSB26-28)
- Not under active attack at release
Bash Commands and Code
Check installed Premiere Pro version on macOS
defaults read /Applications/Adobe\ Premiere\ Pro\ {25,24,23}/Contents/Info.plist CFBundleShortVersionString 2>/dev/null | head -1
Check installed version on Windows (PowerShell)
Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\" | Where-Object {$_.DisplayName -like "Premiere Pro"} | Select-Object DisplayName, DisplayVersion
Verify patch level from Adobe patch metadata
curl -s https://helpx.adobe.com/security/products/premiere_pro/apsb26-28.html | grep -A 5 "Affected versions"
Monitor for suspicious file parsing activity (macOS)
sudo log stream --predicate 'process == "Adobe Premiere Pro"' --info | grep -E "memory|buffer|parse|exception"
Monitor on Linux (if running via compatibility layer)
strace -e read,open,mmap -p $(pgrep -f "premiere") 2>&1 | grep -B 3 -A 3 "EFAULT"
Check for crash dumps indicating out-of-bounds access
ls -la ~/Library/Logs/DiagnosticReports/Adobe\ Premiere\ Pro.crash 2>/dev/null | tail -5
Hunt for recently opened media files with unusual size patterns
find ~/Documents -name ".prproj" -o -name ".mp4" -o -name ".mov" -size +100M -mtime -7 -ls
Validate file integrity using xxd for boundary testing (educational only)
xxd -g 1 -l 64 crafted_vulnerable_file.bin | head -10
Simulate memory read bounds checking concept (Python concept)
python3 -c "
import struct
def safe_read(buffer, offset, size):
if offset + size > len(buffer):
raise ValueError('Out-of-bounds read prevented')
return buffer[offset:offset+size]
Hypothetical vulnerable code simulation
buffer = bytearray(1024)
Vulnerable read (would read past buffer)
value = struct.unpack('<I', buffer[2048:2052])[bash]
print('[bash] Safe reading demo - CVE-2026-27269 concept')
"
Check for Adobe Premiere Pro updates via command line (macOS)
/usr/local/bin/RemoteUpdateManager --action=list --productVersions=PremierePro
Parse Adobe security bulletin for indicators
curl -s https://helpx.adobe.com/security/products/premiere_pro/apsb26-28.html | pup 'ul li text{}' | grep -i version
How Exploit
– Attacker crafts malicious media file (video/project)
– File contains header fields with invalid length values
– Parser reads length value without validation
– Parser attempts to copy attacker-controlled data amount
– Memory read proceeds beyond allocated buffer boundary
– Adjacent memory contents (including code pointers) are read
– Attacker-controlled data influences control flow
– Code execution achieved in user context
– Payload delivered via file open operation
Protection from this CVE
– Update to Premiere Pro version later than 25.5
– Apply Adobe Security Bulletin APSB26-28
– Enable Windows Defender Exploit Guard (CFG)
– Run Premiere Pro with least privilege (non-admin)
– Avoid opening untrusted project files
– Use software restriction policies for untrusted content
– Implement application whitelisting
– Monitor for abnormal application crashes
– Deploy endpoint detection and response (EDR)
– Enable memory protection features (ASLR, DEP)
– Sandbox media file parsing where possible
Impact
– Arbitrary code execution in user context
– Confidential data exposure from memory reads
– System integrity compromise possible
– Application denial of service likely
– Pivot potential to higher privileges
– User interaction required limits wormability
– Affects all Premiere Pro users on versions ≤25.5
– Potential supply chain risk via malicious project files
– No known active exploitation at disclosure
– Patch available immediately from Adobe
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Sources:
Reported By: nvd.nist.gov
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