Buffer overflow in Originlab Originpro
CVE-2026-18289
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Originlab Originpro — versions 2026 SR1
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-26-548/ (x_research-advisory)
- docs.originlab.com/cve/CVE-2026-18289 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-18289?
- CVE-2026-18289 is a high-severity vulnerability in Originlab Originpro, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-08-20.
- How severe is CVE-2026-18289?
- High severity. CVSS v3 base score is 7.8 out of 10.