How severe is CVE-2015-1006?

CVE-2015-1006 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-1006 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1006?

CVE-2015-1006 primarily affects Opto22 Optodatalink. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-1006?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-1006 published?

CVE-2015-1006 was published on 2019-05-10 and last updated on 2026-06-17.

CVE-2015-1006

CVE-2015-1006 is a critical-severity vulnerability in Opto22 Optodatalink with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Opto22 Optodatalink
Published: 2019-05-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2015-1006?: 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.
How severe is CVE-2015-1006?: CVE-2015-1006 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-1006 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1006?: CVE-2015-1006 primarily affects Opto22 Optodatalink. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-1006?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-1006 published?: CVE-2015-1006 was published on 2019-05-10 and last updated on 2026-06-17.

References

https://ics-cert.us-cert.gov/advisories/ICSA-15-120-01

Affected products (6)

cpe:2.3:a:opto22:optodatalink:*:*:*:*:*:*:*:*
cpe:2.3:a:opto22:optoopcserver:*:*:*:*:*:*:*:*
cpe:2.3:a:opto22:pac_display:*:*:*:*:basic:*:*:*
cpe:2.3:a:opto22:pac_display:*:*:*:*:professional:*:*:*
cpe:2.3:a:opto22:pac_project:*:*:*:*:basic:*:*:*
cpe:2.3:a:opto22:pac_project:*:*:*:*:professional:*:*:*

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