What is CVE-2024-43201?

CVE-2024-43201 is a high-severity vulnerability in Apple Iphone OS, classified under Improper Certificate Validation. CVSS score: 8.8/10. Published 2024-09-23.

How severe is CVE-2024-43201?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2024-43201 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Apple Iphone OS

CVE-2024-43201

The Planet Fitness Workouts iOS and Android mobile apps fail to properly validate TLS certificates, allowing an attacker with appropriate network access to obtain session tokens and sensitive information. Planet Fitness first addressed this vulnerability in version 9.8.12 (released on 2024-07-25) and more recently in version 9.9.13 (released on 2025-02-11).

Vulnerability class: Improper Certificate Validation

EPSS: 0.004 (33.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Iphone_os
Google Android
Planet Fitness Workouts — versions 0, 9.9.13
Planetfitness Planet_fitness_workouts

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

Public proof-of-concept exploits

aapooksman/certmitm

References

9119a7d8-5eab-497f-8521-727c672e3725 (Product)
9119a7d8-5eab-497f-8521-727c672e3725 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-43201?: CVE-2024-43201 is a high-severity vulnerability in Apple Iphone OS, classified under Improper Certificate Validation. CVSS score: 8.8/10. Published 2024-09-23.
How severe is CVE-2024-43201?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2024-43201 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.