How severe is CVE-2020-27689?

CVE-2020-27689 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-27689 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27689?

CVE-2020-27689 affects Imomobile Verve Connect Vh510 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27689?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-27689 published?

CVE-2020-27689 was published on 2020-11-04 and last updated on 2026-06-17.

CVE-2020-27689

CVE-2020-27689 is a critical-severity vulnerability in Imomobile Verve Connect Vh510 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Imomobile Verve Connect Vh510 Firmware
Published: 2020-11-04
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-27689?: 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.
How severe is CVE-2020-27689?: CVE-2020-27689 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-27689 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27689?: CVE-2020-27689 affects Imomobile Verve Connect Vh510 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27689?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-27689 published?: CVE-2020-27689 was published on 2020-11-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:imomobile:verve_connect_vh510_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Imomobile Verve Connect Vh510 Firmware

CVE-2020-27692 — High (CVSS 8.8): The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains multiple CSRF vulnerabilities within…
CVE-2020-27691 — Medium (CVSS 6.1): The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 allows XSS via URLBlocking Settings, SNMP…
CVE-2020-27690 — Medium (CVSS 5.5): The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains a buffer overflow within its web…

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