#VU47688 Untrusted Pointer Dereference

Published: 2020-10-12 | Updated: 2020-10-16

Vulnerability identifier: #VU47688

Vulnerability risk: High

CVSSv3: 7.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5139


Exploitation vector: Network

Exploit availability: No

Vulnerable software: SonicOS
Operating systems & Components / Operating system

Vendor: SonicWall


The vulnerability allows a remote attacker to perform DoS attack.

The vulnerability exists due to untrusted pointer dereference within the SSLVPN service. A remote non-authenticated attacker can send a specially crafted request to the device and crash it.

Install updates from vendor's website.

Vulnerable software versions

SonicOS: 5.9, 6.0, 6.5, 7.0


External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability