CVE-2025-61831: Adobe Illustrator RCE Vulnerability

CVE-2025-61831 Overview

CVE-2025-61831 is an out-of-bounds write vulnerability [CWE-787] affecting Adobe Illustrator versions 28.7.10, 29.8.2, and earlier. The flaw allows attackers to achieve arbitrary code execution in the context of the current user when a victim opens a crafted malicious file. Exploitation requires user interaction, limiting the attack to social engineering or supply chain scenarios where a victim is tricked into opening a weaponized Illustrator document. Adobe documented the issue in security bulletin APSB25-109 and released patched versions for both Windows and macOS.

Critical Impact
Successful exploitation grants arbitrary code execution with the privileges of the user running Adobe Illustrator, enabling attackers to install programs, modify data, or create new accounts.

Affected Products

Adobe Illustrator 28.7.10 and earlier (2024 release)
Adobe Illustrator 29.8.2 and earlier (2025 release)
Affected platforms: Microsoft Windows and Apple macOS

Discovery Timeline

2025-11-11 - CVE-2025-61831 published to the National Vulnerability Database
2025-11-12 - CVE-2025-61831 last updated in NVD database

Technical Details for CVE-2025-61831

Vulnerability Analysis

The vulnerability is classified as an out-of-bounds write [CWE-787] in Adobe Illustrator's file parsing logic. When Illustrator processes a malicious file, the application writes data past the boundary of an allocated buffer. This memory corruption can overwrite adjacent data structures, function pointers, or return addresses on the stack or heap.

Attackers craft a malformed Illustrator file that triggers the boundary violation during parsing. Once memory is corrupted, the attacker can hijack control flow to execute arbitrary instructions. Execution occurs in the security context of the logged-in user, so the attacker inherits the user's file system access and network rights.

The attack vector is local because the exploit chain begins with a file opened on the victim's machine. However, the malicious file can be delivered through email, web download, shared storage, or removable media.

Root Cause

The defect stems from insufficient bounds checking in Illustrator's handling of structured file content. The parser fails to validate that input-derived offsets or sizes remain within the allocated buffer before writing data. Adobe has not publicly disclosed the exact file format component or function responsible for the flaw.

Attack Vector

Exploitation requires the victim to open a malicious file in a vulnerable Illustrator build. Typical delivery paths include phishing emails with attached .ai files, links to compromised cloud storage, or trojanized templates shared through design collaboration platforms. No network exposure or elevated privileges are required from the attacker before delivery.

The vulnerability mechanism is described in prose because no public proof-of-concept code or technical reverse-engineering details have been released. Refer to the Adobe Security Advisory APSB25-109 for the official vendor description.

Detection Methods for CVE-2025-61831

Indicators of Compromise

Unexpected child processes spawned by Illustrator.exe on Windows or Adobe Illustrator on macOS, particularly shells, scripting hosts, or rundll32.exe.
Illustrator process crashes or abnormal termination events recorded shortly after a user opens an .ai, .eps, .pdf, or .svg file from an untrusted source.
Outbound network connections originating from the Illustrator process to unfamiliar domains or IP addresses.
New executable files, scheduled tasks, or persistence entries created in the user profile immediately after Illustrator activity.

Detection Strategies

Monitor process lineage to flag Illustrator spawning command interpreters such as cmd.exe, powershell.exe, bash, or osascript.
Inspect endpoint telemetry for memory access violations or exception events tied to the Illustrator binary.
Correlate file open events for design file extensions with subsequent process creation and network activity.
Apply behavioral analytics to detect post-exploitation patterns such as credential access or lateral movement following Illustrator usage.

Monitoring Recommendations

Enable detailed process creation logging (Windows Event ID 4688, Sysmon Event ID 1, macOS Endpoint Security) for all hosts running Illustrator.
Forward Illustrator crash dumps and Windows Error Reporting telemetry to a centralized SIEM for review.
Track file downloads of Illustrator-compatible formats from external email and web gateways.

How to Mitigate CVE-2025-61831

Immediate Actions Required

Update Adobe Illustrator to the fixed releases listed in APSB25-109 on every Windows and macOS endpoint.
Inventory all Illustrator installations using software asset management tooling to confirm patch coverage.
Instruct users to avoid opening Illustrator files received from unverified sources until patching is complete.
Block inbound email attachments with Illustrator-related extensions from untrusted senders at the mail gateway.

Patch Information

Adobe released fixed versions of Illustrator addressing CVE-2025-61831. Apply the updates documented in the Adobe Security Advisory APSB25-109. Users running Illustrator 2024 must upgrade beyond 28.7.10, and users on Illustrator 2025 must upgrade beyond 29.8.2.

Workarounds

Restrict Illustrator usage to a controlled subset of users while patching is in progress.
Open untrusted Illustrator files only inside isolated sandboxes or virtual machines without sensitive data or network access.
Apply application allowlisting to prevent Illustrator from launching unauthorized child processes.
Enforce least-privilege accounts so that any successful exploitation runs without administrative rights.

bash

# Verify installed Illustrator version on macOS
defaults read "/Applications/Adobe Illustrator 2025/Adobe Illustrator.app/Contents/Info.plist" CFBundleShortVersionString

# Verify installed Illustrator version on Windows (PowerShell)
Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*" |
  Where-Object { $_.DisplayName -like "Adobe Illustrator*" } |
  Select-Object DisplayName, DisplayVersion