What is the CVSS score of CVE-2021-40518?

CVE-2021-40518 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2021-40518?

Yes, a public proof-of-concept exploit is available for CVE-2021-40518. Prioritise patching immediately. EPSS: 0.4%.

Hsmx App 25 Firmware CVE-2021-40518

MEDIUM

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

2021-11-10 cve@mitre.org

CSRF Hsmx App 25 Firmware Hsmx App 100 Firmware Hsmx App 1000 Firmware Hsmx App 5000 Firmware Hsmx App 20000 Firmware

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

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:N/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Nov 10, 2021 - 16:15 nvd

MEDIUM 6.5

DescriptionNVD

Airangel HSMX Gateway devices through 5.2.04 allow CSRF.

AnalysisAI

Airangel HSMX Gateway devices through 5.2.04 allow CSRF. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

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. Affected products include: Airangel Hsmx-App-25 Firmware, Airangel Hsmx-App-100 Firmware, Airangel Hsmx-App-1000 Firmware, Airangel Hsmx-App-5000 Firmware, Airangel Hsmx-App-20000 Firmware. Version information: through 5.2.04.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.