PatchTheCVECVE-2021-33505: A local malicious user can circumvent the Falco detection engine through 0.28.1 by running a program that alte
CVE-2021-33505 is a high-severity flaw (CVSS 7.8) affecting falco. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A local malicious user can circumvent the Falco detection engine through 0.28.1 by running a program that alters arguments of system calls being executed. Issue is fixed in Falco versions >= 0.29.1.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 71%) |
| CISA exploited list | No |
| Weakness | CWE-269 |
| Published | 2021-07-15 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-33505?
falco: upgrade to newer than 0.28.1. Exact commands for each OS are on this page.
Is CVE-2021-33505 being exploited?
CVE-2021-33505 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-33505 affect?
CVE-2021-33505 affects falco. Severity is high (CVSS 7.8). A local malicious user can circumvent the Falco detection engine through 0.28.1 by running a program that alters arguments of system calls being executed. Issue is fixed in Falco versions >= 0.29.1.
How urgent is CVE-2021-33505?
Priority 34/100. High severity
Related CVEs
- CVE-2019-8339 MEDIUM 5.5 UPGRADE An issue was discovered in Falco through 0.14.0