Is CVE-2020-5139 in the CISA KEV catalog?

No. CVE-2020-5139 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-5139?

CVE-2020-5139 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-5139?

CVE-2020-5139 has an EPSS score of 1.76% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2020-5139?

No published fix for CVE-2020-5139 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2020-5139

HIGHEPSS 76th pctl

7.5

CVSS v3

NVD

Description

A vulnerability in SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS) due to the release of Invalid pointer and leads to a firewall crash. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.

CWE-763

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.76%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Vendor Advisory1

psirt.global.sonicwall.com

Related Vulnerabilities

Other CWE-763 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2007-4367	High	9.3	8.2%	-	Fix
CVE-2015-2695	Medium	5.0	6.2%	-	Fix
CVE-2013-4695	High	7.8	5.3%	-	-
CVE-2020-36224	High	7.5	4.3%	-	Fix
CVE-2022-31625	High	8.1	3.4%	-	Fix
CVE-2021-42377	Critical	9.8	3.4%	-	Fix

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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.