What is the CVSS score of CVE-2021-42539?

CVE-2021-42539 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.7%.

Is there a patch available for CVE-2021-42539?

Yes, a patch is available for CVE-2021-42539. Update the affected software to the latest version immediately.

Wireless 1410 Gateway Firmware CVE-2021-42539

HIGH

Missing Authentication for Critical Function (CWE-306)

2021-10-22 ics-cert@hq.dhs.gov

Authentication Bypass Wireless 1410 Gateway Firmware Wireless 1410D Gateway Firmware Wireless 1420 Gateway Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 22, 2021 - 14:15 nvd

HIGH 8.8

DescriptionNVD

The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.

AnalysisAI

The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Missing Authentication for Critical Function vulnerability could allow attackers to access critical functionality without authentication.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change. Affected products include: Emerson Wireless 1410 Gateway Firmware, Emerson Wireless 1410D Gateway Firmware, Emerson Wireless 1420 Gateway Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Require authentication for all sensitive operations, implement defense in depth.