How severe is CVE-2020-10939?

CVE-2020-10939 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-10939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10939?

CVE-2020-10939 affects Phoenixcontact Pc Worx Srt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10939?

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

When was CVE-2020-10939 published?

CVE-2020-10939 was published on 2020-03-27 and last updated on 2026-06-17.

CVE-2020-10939

CVE-2020-10939 is a high-severity vulnerability in Phoenixcontact Pc Worx Srt with a CVSS 3.x base score of 7.8. 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-276.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Phoenixcontact Pc Worx Srt
Published: 2020-03-27
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2020-10939?: Insecure, default path permissions in PHOENIX CONTACT PC WORX SRT through 1.14 allow for local privilege escalation.
How severe is CVE-2020-10939?: CVE-2020-10939 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-10939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10939?: CVE-2020-10939 affects Phoenixcontact Pc Worx Srt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-10939 published?: CVE-2020-10939 was published on 2020-03-27 and last updated on 2026-06-17.

References

https://cert.vde.com/en-us/advisories/vde-2020-012

Affected products (1)

cpe:2.3:a:phoenixcontact:pc_worx_srt:*:*:*:*:*:*:*:*

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