CVE-2015-7939

highpriority · track · 40EPSS 0.050 · 92 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.96% (92nd) EPSS

CVSS 9.3 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

Heap-based buffer overflow in Unitronics VisiLogic OPLC IDE before 9.8.09 allows remote attackers to execute arbitrary code via a long vlp filename.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationVisiLogic OPLC IDEcisa_csaf_ot
Update to the latest software package, VisiLogic V9.8.09 or newer. (http://www.unitronics.com/support/downloads)
http://www.unitronics.com/support/downloads

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.8–9.8

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v3.09.6criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 6

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimaryCWE-94US

affected products (4)

Products and version ranges known to be affected.

Unitronics VisiLogic OPLC IDE: <=9.8.0.00all versionscisa_csaf_otUS
Unitronics VisiLogic OPLC IDE≤ 9.8.0.00cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
unitronics visilogic oplc ide≤ 9.8.0.00nvdUScpe:2.3:a:unitronics:visilogic_oplc_ide:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-15-274-02AUnitronics VisiLogic OPLC IDE Vulnerabilities (Update A)2015-07-04icsa · cisa_csaf_otUS
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2016-01-09modified 2026-06-17

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references (7)

External citations — patches, advisories, analysis.

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