CVE-2020-27690

Name: CVE-2020-27690
Creator: NVD / NIST
Published: 2020-11-04T21:15:12.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2020-27690 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains a buffer overflow within its web management portal. When a POST request is sent to /boaform/admin/formDOMAINBLK with a large blkDomain value, the Boa server crashes.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains a buffer overflow within its web management portal. When a POST request is sent to /boaform/admin/formDOMAINBLK with a large blkDomain value, the Boa server crashes.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.42%

33.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Imomobile	Verve Connect Vh510 Firmware	< 1.0.1.6l0516

References

https://6point6.co.uk/insights/security-advisory-relish-4g-hub-vh510/Third Party Advisory
https://6point6.co.uk/wp-content/uploads/2020/10/Relish-4G-VH510-Hub-Full-Disclosure-v1.3.pdfExploit, Third Party Advisory
https://6point6.co.uk/insights/security-advisory-relish-4g-hub-vh510/Third Party Advisory
https://6point6.co.uk/wp-content/uploads/2020/10/Relish-4G-VH510-Hub-Full-Disclosure-v1.3.pdfExploit, Third Party Advisory

Timeline

Published: Nov 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27690?

How severe is CVE-2020-27690?

CVE-2020-27690 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27690?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27690?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST