Is CVE-2021-23155 in the CISA KEV catalog?

No. CVE-2021-23155 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-23155?

CVE-2021-23155 has a CVSS v3 base score of 9.0 (CRITICAL).

What is the EPSS score for CVE-2021-23155?

CVE-2021-23155 has an EPSS score of 0.47% (37th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-23155?

Upgrade command centre mobile client to 8.60.065 or later.

CVE & CISA-KEV Catalog

CVE-2021-23155

CRITICAL

9.0

CVSS v3

NVD

Description

Improper validation of the cloud certificate chain in Mobile Client allows man-in-the-middle attack to impersonate the legitimate Command Centre Server. This issue affects: Gallagher Command Centre Mobile Client for Android 8.60 versions prior to 8.60.065; version 8.50 and prior versions.

CWE-296 CWE-295Improper Certificate Validation

How to fix

Remediation Available

command centre mobile clientNVD

Affected:>= 8.60, < 8.60.065Fixed in:8.60.065CVE-2021-23155derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.47%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Vendor Advisory1

security.gallagher.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.