CVE-2020-27689: The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains undocumented default admin

Q: How do I fix CVE-2020-27689?

verve connect vh510 firmware: upgrade to 1.0.1.6l0516. Exact commands for each OS are on this page.

Q: Is CVE-2020-27689 being exploited?

CVE-2020-27689 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-27689 affect?

CVE-2020-27689 affects verve connect vh510 firmware. Severity is critical (CVSS 9.8). The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains undocumented default admin credentials for the web management interface. A remote attacker could exploit this vulnerability to login and execute commands on

Q: How urgent is CVE-2020-27689?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-27689 is a critical-severity flaw (CVSS 9.8) affecting verve connect vh510 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains undocumented default admin credentials for the web management interface. A remote attacker could exploit this vulnerability to login and execute commands on the device, as well as upgrade the firmware image to a malicious version.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-798
Published	2020-11-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: imomobile

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-11-04 20:15 UTCPublished CVE record published
2026-06-17 03:09 UTCUpdated Record last modified

imomobile verve connect vh510 firmware UPGRADE

Affected: < 1.0.1.6l0516

Fixed in: 1.0.1.6l0516

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-27689?

verve connect vh510 firmware: upgrade to 1.0.1.6l0516. Exact commands for each OS are on this page.

Is CVE-2020-27689 being exploited?

CVE-2020-27689 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-27689 affect?

CVE-2020-27689 affects verve connect vh510 firmware. Severity is critical (CVSS 9.8). The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains undocumented default admin credentials for the web management interface. A remote attacker could exploit this vulnerability to login and execute commands on

How urgent is CVE-2020-27689?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-27692 HIGH 8.8 UPGRADE The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains multiple CSRF vulnerabiliti
CVE-2020-27691 MEDIUM 6.1 UPGRADE The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 allows XSS via URLBlocking Settings,
CVE-2020-27690 MEDIUM 5.5 UPGRADE The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains a buffer overflow within it

References

← Back to latest CVEs