CVE-2026-18288

User-context code execution via unchecked OPJU parser write

Published Aug 20, 2026 · Updated Aug 20, 2026

Out-of-bounds write in OriginLab OriginPro 2026b SR0 and earlier allows context-dependent attackers to execute code via a crafted OPJU file. The OPJU parser insufficiently validates file-supplied data before writing it beyond an allocated data structure, causing heap corruption. A target user must open the file; successful exploitation runs arbitrary code with that user's privileges.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in OriginLab OriginPro 2026b SR0 and earlier allows context-dependent attackers to execute code via a crafted OPJU file. The OPJU parser insufficiently validates file-supplied data before writing it beyond an allocated data structure, causing heap corruption. A target user must open the file; successful exploitation runs arbitrary code with that user's privileges.

The record

CVE
CVE-2026-18288
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
OriginLab Corporation
Product
OriginPro
Classifications
CWE-787, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2026 SR1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OriginLab Corporation · OriginProversion=2026 SR1

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002User Execution Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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