CVE-2026-18289 OriginLab OriginPro OPJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Remote attackers can execute arbitrary code by tricking users into opening malicious OPJ files in OriginLab OriginPro due to an out-of-bounds write flaw.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-18289?
CVE-2026-18289 is a high-severity memory corruption vulnerability in OriginLab OriginPro, published on 20 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
OriginLab OriginPro OPJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of OriginLab OriginPro. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of OPJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29332.
Weakness: CWE-787
Which versions are affected by CVE-2026-18289?
How do I fix CVE-2026-18289?
No fix has been published for CVE-2026-18289 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-18289 being exploited?
There is no known exploitation of CVE-2026-18289 in the wild and no public exploit code.
Sources
Also known as GHSA-c56j-cm2h-734m.