What is the CVSS score of CVE-2021-20621?

CVE-2021-20621 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.6%.

Is there a patch available for CVE-2021-20621?

Yes, a patch is available for CVE-2021-20621. Update the affected software to the latest version immediately.

Wg2600Hp Firmware CVE-2021-20621

HIGH

Cross-Site Request Forgery (CSRF) (CWE-352)

2021-01-28 vultures@jpcert.or.jp

CSRF Wg2600Hp Firmware Wg2600Hp2 Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jan 28, 2021 - 11:15 nvd

HIGH 8.8

DescriptionNVD

Cross-site request forgery (CSRF) vulnerability in Aterm WG2600HP firmware Ver1.0.2 and earlier, and Aterm WG2600HP2 firmware Ver1.0.2 and earlier allows remote attackers to hijack the authentication of administrators via unspecified vectors.

AnalysisAI

Technical ContextAI

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. Cross-site request forgery (CSRF) vulnerability in Aterm WG2600HP firmware Ver1.0.2 and earlier, and Aterm WG2600HP2 firmware Ver1.0.2 and earlier allows remote attackers to hijack the authentication of administrators via unspecified vectors. Affected products include: Aterm Wg2600Hp Firmware, Aterm Wg2600Hp2 Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.