CrowdStrike Falcon Sensor for Linux TLS Issue
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| CrowdStrike | Falcon sensor for Linux | 7.20 to before 7.20.17308; 7.19 to before 7.19.17221; 7.18 to before 7.18.17131; 7.17 to before 7.17.17014; 7.16 to before 7.16.16909; 7.15 to before 7.15.16806; 7.14 to before 7.14.16705; 7.13 to before 7.13.16606; 7.11 to before 7.11.16410; 7.10 to before 7.10.16321; 7.07 to before 7.07.16209; 7.06 to before 7.06.16113 | 7.21.17405, 7.20.17308, 7.19.17221, 7.18.17131, 7.17.17014, 7.16.16909, 7.15.16806, 7.14.16705, 7.13.16606, 7.11.16410, 7.10.16321, 7.07.16209, 7.06.16113 | Patch available | CNA |
| CrowdStrike | Falcon Kubernetes Admission Controller | 7.20 to before 7.20.1808; 7.18 to before 7.18.1605; 7.17 to before 7.17.1503; 7.16 to before 7.16.1403; 7.14 to before 7.14.1203; 7.13 to before 7.13.1102; 7.12 to before 7.12.1002; 7.11 to before 7.11.904; 7.10 to before 7.10.806; 7.06 to before 7.06.603 | 7.21.1904, 7.20.1808, 7.18.1605, 7.17.1503, 7.16.1403, 7.14.1203, 7.13.1102, 7.12.1002, 7.11.904, 7.10.806, 7.06.603 | Patch available | CNA |
| CrowdStrike | Falcon Container Sensor | 7.20 to before 7.20.5908; 7.19 to before 7.19.5807; 7.18 to before 7.18.5705; 7.17 to before 7.17.5603; 7.16 to before 7.16.5503; 7.15 to before 7.15.5403; 7.14 to before 7.14.5306; 7.13 to before 7.13.5202; 7.12 to before 7.12.5102; 7.11 to before 7.11.5003; 7.10 to before 7.10.4907; 7.06 to before 7.06.4705 | 7.21.6003, 7.20.5908, 7.19.5807, 7.18.5705, 7.17.5603, 7.16.5503, 7.15.5403, 7.14.5306, 7.13.5202, 7.12.5102, 7.11.5003, 7.10.4907, 7.06.4705 | Patch available | CNA |
- Falcon sensor for Linux VendorCrowdStrike Affected 7.20 to before 7.20.17308; 7.19 to before 7.19.17221; 7.18 to before 7.18.17131; 7.17 to before 7.17.17014; 7.16 to before 7.16.16909; 7.15 to before 7.15.16806; 7.14 to before 7.14.16705; 7.13 to before 7.13.16606; 7.11 to before 7.11.16410; 7.10 to before 7.10.16321; 7.07 to before 7.07.16209; 7.06 to before 7.06.16113 Fixed in 7.21.17405, 7.20.17308, 7.19.17221, 7.18.17131, 7.17.17014, 7.16.16909, 7.15.16806, 7.14.16705, 7.13.16606, 7.11.16410, 7.10.16321, 7.07.16209, 7.06.16113 Patch available CNA
- Falcon Kubernetes Admission Controller VendorCrowdStrike Affected 7.20 to before 7.20.1808; 7.18 to before 7.18.1605; 7.17 to before 7.17.1503; 7.16 to before 7.16.1403; 7.14 to before 7.14.1203; 7.13 to before 7.13.1102; 7.12 to before 7.12.1002; 7.11 to before 7.11.904; 7.10 to before 7.10.806; 7.06 to before 7.06.603 Fixed in 7.21.1904, 7.20.1808, 7.18.1605, 7.17.1503, 7.16.1403, 7.14.1203, 7.13.1102, 7.12.1002, 7.11.904, 7.10.806, 7.06.603 Patch available CNA
- Falcon Container Sensor VendorCrowdStrike Affected 7.20 to before 7.20.5908; 7.19 to before 7.19.5807; 7.18 to before 7.18.5705; 7.17 to before 7.17.5603; 7.16 to before 7.16.5503; 7.15 to before 7.15.5403; 7.14 to before 7.14.5306; 7.13 to before 7.13.5202; 7.12 to before 7.12.5102; 7.11 to before 7.11.5003; 7.10 to before 7.10.4907; 7.06 to before 7.06.4705 Fixed in 7.21.6003, 7.20.5908, 7.19.5807, 7.18.5705, 7.17.5603, 7.16.5503, 7.15.5403, 7.14.5306, 7.13.5202, 7.12.5102, 7.11.5003, 7.10.4907, 7.06.4705 Patch available CNA
Remediation
- Fix · CNA Falcon sensor for Linux (CrowdStrike) Fixed in 7.21.17405, 7.20.17308, 7.19.17221, 7.18.17131, 7.17.17014, 7.16.16909, 7.15.16806, 7.14.16705, 7.13.16606, 7.11.16410, 7.10.16321, 7.07.16209, 7.06.16113
- Fix · CNA Falcon Kubernetes Admission Controller (CrowdStrike) Fixed in 7.21.1904, 7.20.1808, 7.18.1605, 7.17.1503, 7.16.1403, 7.14.1203, 7.13.1102, 7.12.1002, 7.11.904, 7.10.806, 7.06.603
- Fix · CNA Falcon Container Sensor (CrowdStrike) Fixed in 7.21.6003, 7.20.5908, 7.19.5807, 7.18.5705, 7.17.5603, 7.16.5503, 7.15.5403, 7.14.5306, 7.13.5202, 7.12.5102, 7.11.5003, 7.10.4907, 7.06.4705
Timeline
- 2026-10-02 Threatist record created from CVE-2025-1146
- 2026-10-03 Alias added: GHSA-844x-j3wf-r5rf
References
More CrowdStrike vulnerabilities
- TI-2026-28892 CrowdStrike LogScale Unauthenticated Path Traversal CVSS 3.1CRITICAL 9.8
- TI-2022-02634 CrowdStrike Falcon Uninstallation authorization CVSS 3.1LOW 2.7
- TI-2026-28893 Vulnerability Affecting Office Macro Removal in CrowdStrike Falcon Sensor for Windows CVSS 3.1HIGH 8.8
- TI-2025-27746 CrowdStrike Falcon Sensor for Windows Logic Error CVSS 3.1MEDIUM 6.5
- TI-2025-27745 CrowdStrike Falcon Sensor for Windows Race Condition CVSS 3.1MEDIUM 5.6
Sources
- CVE-2025-1146 · CVE Program
- CVE-2025-1146 · NVD
- FIRST EPSS
- GHSA-844x-j3wf-r5rf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences