How severe is CVE-2020-27569?

CVE-2020-27569 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-27569 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27569?

CVE-2020-27569 affects Aviatrix Openvpn. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27569?

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-2020-27569 published?

CVE-2020-27569 was published on 2021-04-21 and last updated on 2026-06-17.

CVE-2020-27569

CVE-2020-27569 is a high-severity vulnerability in Aviatrix Openvpn with a CVSS 3.x base score of 7.5. 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 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Aviatrix Openvpn
Published: 2021-04-21
Last modified: 2026-06-17

Description

Arbitrary File Write exists in Aviatrix VPN Client 2.8.2 and earlier. The VPN service writes logs to a location that is world writable and can be leveraged to gain write access to any file on the system.

Frequently asked questions

What is CVE-2020-27569?: Arbitrary File Write exists in Aviatrix VPN Client 2.8.2 and earlier. The VPN service writes logs to a location that is world writable and can be leveraged to gain write access to any file on the system.
How severe is CVE-2020-27569?: CVE-2020-27569 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-27569 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27569?: CVE-2020-27569 affects Aviatrix Openvpn. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27569?: 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-2020-27569 published?: CVE-2020-27569 was published on 2021-04-21 and last updated on 2026-06-17.

References

https://docs.aviatrix.com/HowTos/security_bulletin_article.html#openvpn-abitrary-file-write

Affected products (1)

cpe:2.3:a:aviatrix:openvpn:*:*:*:*:*:*:*:*

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