What is the CVSS score of CVE-2021-20677?

CVE-2021-20677 has a CVSS 3.1 base score of 3.1 (Low). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.9%.

Univerge Aspire Wx Firmware CVE-2021-20677

LOW

2021-03-26 vultures@jpcert.or.jp

Denial Of Service Univerge Aspire Wx Firmware Univerge Aspire Ux Firmware Univerge Sv9100 Firmware Sl2100 Firmware

3.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

3.1 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

CVE Published

Mar 26, 2021 - 09:15 nvd

LOW 3.1

DescriptionNVD

AnalysisAI

Technical ContextAI

UNIVERGE Aspire series PBX (UNIVERGE Aspire WX from 1.00 to 3.51, UNIVERGE Aspire UX from 1.00 to 9.70, UNIVERGE SV9100 from 1.00 to 10.70, and SL2100 from 1.00 to 3.00) allows a remote authenticated attacker to cause system down and a denial of service (DoS) condition by sending a specially crafted command. Affected products include: Necplatforms Univerge Aspire Wx Firmware, Necplatforms Univerge Aspire Ux Firmware, Necplatforms Univerge Sv9100 Firmware, Necplatforms Sl2100 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.