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Fencer Vulns
high 8.1

CVE-2025-1146 json

CrowdStrike Falcon Sensor for Linux TLS Issue

published 2025-02-12 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-2021

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

Summary

CrowdStrike uses industry-standard TLS (transport layer security) to secure communications from the Falcon sensor to the CrowdStrike cloud. CrowdStrike has identified a validation logic error in the Falcon sensor for Linux, Falcon Kubernetes Admission Controller, and Falcon Container Sensor where our TLS connection routine to the CrowdStrike cloud can incorrectly process server certificate validation. This could allow an attacker with the ability to control network traffic to potentially conduct a man-in-the-middle (MiTM) attack. CrowdStrike identified this issue internally and released a security fix in all Falcon sensor for Linux, Falcon Kubernetes Admission Controller, and Falcon Container Sensor versions 7.06 and above.

CrowdStrike identified this issue through our longstanding, rigorous security review process, which has been continually strengthened with deeper source code analysis and ongoing program enhancements as part of our commitment to security resilience. CrowdStrike has no indication of any exploitation of this issue in the wild. CrowdStrike has leveraged its world class threat hunting and intelligence capabilities to actively monitor for signs of abuse or usage of this flaw and will continue to do so.

Windows and Mac sensors are not affected by this.

Patch / fix

  • CrowdStrike Falcon sensor for Linux 7.06.16113, 7.07.16209, 7.10.16321, 7.11.16410, 7.13.16606, 7.14.16705, 7.15.16806, 7.16.16909, 7.17.17014, 7.18.17131, 7.19.17221, 7.20.17308, 7.21.17405
  • CrowdStrike Falcon Kubernetes Admission Controller 7.06.603, 7.10.806, 7.11.904, 7.12.1002, 7.13.1102, 7.14.1203, 7.16.1403, 7.17.1503, 7.18.1605, 7.20.1808, 7.21.1904
  • CrowdStrike Falcon Container Sensor 7.06.4705, 7.10.4907, 7.11.5003, 7.12.5102, 7.13.5202, 7.14.5306, 7.15.5403, 7.16.5503, 7.17.5603, 7.18.5705, 7.19.5807, 7.20.5908, 7.21.6003

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • CrowdStrike Falcon sensor for Linux
  • CrowdStrike Falcon Kubernetes Admission Controller
  • CrowdStrike Falcon Container Sensor

Classification

Weakness
  • CWE-296 Improper Following of a Certificate's Chain of Trust

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.