Is CVE-2020-15078 in the CISA KEV catalog?

No. CVE-2020-15078 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15078?

CVE-2020-15078 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-15078?

CVE-2020-15078 has an EPSS score of 5.11% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15078?

Upgrade openvpn on debian 11 to 2.5.1-2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-15078

HIGHEPSS 91th pctl

7.5

CVSS v3

NVD

Description

OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.

CWE-305 CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

openvpnDebian

Fixed in:2.5.1-2CVE-2020-15078

openvpnUbuntu

Fixed in:2.4.4-2ubuntu1.5USN-4933-1

Fixed in:2.4.7-1ubuntu2.20.04.2USN-4933-1

OpenVPNWindows application

Affected:2.5.0 2.5.2Fixed in:2.5.2OpenVPN, Inc.

Affected:2.4.11Fixed in:2.4.11OpenVPN, Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

5.11%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch1

community.openvpn.net

Third-Party Advisory3

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.