Skip to content
Fencer Intel
critical 9.8

CVE-2015-1006 json

A vulnerable file in Opto 22 PAC Project Professional versions prior to R9.4006, PAC Project Basic versions prior to R9.4006, PAC Display B…

published 2019-05-10 7 y ago modified 2026-06-17 4 mo ago also EUVD-2015-1150

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.3%
EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

A vulnerable file in Opto 22 PAC Project Professional versions prior to R9.4006, PAC Project Basic versions prior to R9.4006, PAC Display Basic versions prior to R9.4f, PAC Display Professional versions prior to R9.4f, OptoOPCServer versions prior to R9.4c, and OptoDataLink version R9.4d and prior versions that were installed by PAC Project installer, versions prior to R9.4006, is susceptible to a heap-based buffer overflow condition that may allow remote code execution on the target system. Opto 22 suggests upgrading to the new product version as soon as possible.

Patch / fix

  • opto22 optodatalink r9.4d
  • opto22 optoopcserver r9.4c
  • opto22 pac_display r9.4f
  • opto22 pac_project r9.4006

Exploit prediction

5.34% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Opto 22 PAC Project Professional
  • Opto 22 PAC Project Basic
  • Opto 22 PAC Display Basic
  • Opto 22 PAC Display Professional
  • Opto 22 OptoOPCServer
  • Opto 22 OptoDataLink

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.