CVE-2020-10939

mediumpriority · track · 31OT risk · elevatedEPSS 0.003 · 22 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.30% (22nd) EPSS

CVSS 4.6 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · phoenix_contact_psirt

EPSS · scored 2026-10-27

Insecure, default path permissions in PHOENIX CONTACT PC WORX SRT through 1.14 allow for local privilege escalation.

remediations

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

No vendor fix yet; a mitigation is available.

MitigationPC WORX SRTphoenix_contact_psirt
Customers using PC WORX SRT are strongly recommended to use the software only on single user systems where restricting the access rights of the PC WORX SRT is not necessary. Phoenix Contact strongly recommends protection measures against unauthorized access for network-compatible devices, solutions and PC-based software. For detailed information please refer to our application note: Measures to protect network-compatible devices with communication interfaces, solutions and PC-based software against unauthorized access

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · Phoenix Contact PSIRT DE

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-276USprimaryCWE-269US

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
phoenixcontact pc worx srt≤ 1.14nvdUScpe:2.3:a:phoenixcontact:pc_worx_srt:*:*:*:*:*:*:*:*
PHOENIX CONTACT PC WORX SRT≤ 1.14phoenix_contact_psirtDE
PHOENIX CONTACT Software PC WORX SRT <=1.14≤ 1.14phoenix_contact_psirtDE

advisories (1)

Vendor and ecosystem advisories describing this.

VDE-2020-012PHOENIX CONTACT: Local Privilege Escalation in PC WORX SRT2020-03-27csaf · phoenix_contact_psirtDE
The Phoenix Contact application 'PC WORX SRT' is installed as service. The installation path of the application is configured to have insecure permissions which allows any unprivileged user to write arbitrary files to the installation directory where all the configuration files and binaries of the service are located.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd phoenix_contact_psirt NVD CVE.org MITRE

published 2020-03-27modified 2026-06-17

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+2180 more

references (4)

External citations — patches, advisories, analysis.

scry

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