No exploitation reportedFix available

CVE-2015-1006

Q: Is CVE-2015-1006 actively exploited?

Active exploitation of CVE-2015-1006 has not been confirmed. Its EPSS score was 5.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2015-1006?

CVE-2015-1006 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2019-05-10
Fixed inr9.4d
WeaknessCWE-119 · CWE-121

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2019-05-1014:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-1006?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-1006?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Opto22 optodatalink

Branch	Affected	Fixed in	Source
—	< r9.4d	r9.4d	NVD

Opto22 optoopcserver

Branch	Affected	Fixed in	Source
—	< r9.4c	r9.4c	NVD

Opto22 pac display

Branch	Affected	Fixed in	Source
—	< r9.4f	r9.4f	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Opto22 optodatalink to r9.4d

Advisories and patches

ics-cert.us-cert.govMitigation

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.010read 2026-10-23
CNAweakness (CWE)CWE-121read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score5.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2019-05-10
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2015-1006?

Is CVE-2015-1006 actively exploited?

Active exploitation of CVE-2015-1006 has not been confirmed. Its EPSS score was 5.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2015-1006?

CVE-2015-1006 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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