What is CVE-2020-5139?

CVE-2020-5139 is a high-severity vulnerability in SonicWall Sonicos, classified under Release of Invalid Pointer or Reference. CVSS score: 7.5/10. Published 2020-10-12.

How severe is CVE-2020-5139?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in SonicWall Sonicos

CVE-2020-5139

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.

EPSS: 0.018 (76.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Sonicwall Sonicos — versions SonicOS 5.9.1.13-5n and earlier, SonicOS 6.5.4.7-79n and earlier, 7.0.0.0
Sonicwall Sonicosv

Weakness classification (CWE)

CWE-763 — Release of Invalid Pointer or Reference

References

PSIRT@sonicwall.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-5139?: CVE-2020-5139 is a high-severity vulnerability in SonicWall Sonicos, classified under Release of Invalid Pointer or Reference. CVSS score: 7.5/10. Published 2020-10-12.
How severe is CVE-2020-5139?: High severity. CVSS v3 base score is 7.5 out of 10.