The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 allows XSS via URLBlocking Settings, SNMP Settings, and System Lo…

published 2020-11-04 6y ago modified 2026-06-17 4mo ago also EUVD-2020-20195

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 allows XSS via URLBlocking Settings, SNMP Settings, and System Log Settings.

Patch / fix

fixed in 1

imomobile verve_connect_vh510_firmware 1.0.1.6l0516

Is CVE-2020-27691 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

6point6.co.uk https://6point6.co.uk/wp-content/uploads/2020/10/Relish-4G-VH510-Hub-Full-Disclosure-v1.3.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

6point6.co.uk /wp-content/uploads/2020/10/Relish-4G-VH510-Hub-Full-Disclosure-v1.3.pdf
exploit, third-party-advisory
6point6.co.uk /insights/security-advisory-relish-4g-hub-vh510/
third-party-advisory

Sources

CVE List CVE-2020-27691
NVD CVE-2020-27691

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.