How severe is CVE-2020-13539?

CVE-2020-13539 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-2020-13539 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13539?

CVE-2020-13539 affects Win911 Win-911. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13539?

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-2020-13539 published?

CVE-2020-13539 was published on 2021-01-05 and last updated on 2026-06-17.

CVE-2020-13539

CVE-2020-13539 is a high-severity vulnerability in Win911 Win-911 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: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Win911 Win-911
Published: 2021-01-05
Last modified: 2026-06-17

Description

An exploitable local privilege elevation vulnerability exists in the file system permissions of the Win-911 Enterprise V4.20.13 install directory via “WIN-911 Mobile Runtime” service. Depending on the vector chosen, an attacker can overwrite various executables which could lead to escalation of the privileges when executed.

Frequently asked questions

What is CVE-2020-13539?: An exploitable local privilege elevation vulnerability exists in the file system permissions of the Win-911 Enterprise V4.20.13 install directory via “WIN-911 Mobile Runtime” service. Depending on the vector chosen, an attacker can overwrite various executables which could lead to escalation of the privileges when executed.
How severe is CVE-2020-13539?: CVE-2020-13539 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-2020-13539 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13539?: CVE-2020-13539 affects Win911 Win-911. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13539?: 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-2020-13539 published?: CVE-2020-13539 was published on 2021-01-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:win911:win-911:4.20.13:*:*:*:enterprise:*:*:*

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