How severe is CVE-2020-27690?

CVE-2020-27690 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-27690 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27690?

CVE-2020-27690 affects Imomobile Verve Connect Vh510 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27690?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-27690 published?

CVE-2020-27690 was published on 2020-11-04 and last updated on 2026-06-17.

CVE-2020-27690

CVE-2020-27690 is a medium-severity vulnerability in Imomobile Verve Connect Vh510 Firmware with a CVSS 3.x base score of 5.5. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.9
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
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 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.

Frequently asked questions

What is CVE-2020-27690?: 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.
How severe is CVE-2020-27690?: CVE-2020-27690 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-27690 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27690?: CVE-2020-27690 affects Imomobile Verve Connect Vh510 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27690?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27690 published?: CVE-2020-27690 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-2020-27689 — Critical (CVSS 9.8): The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains undocumented default admin…
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…

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