CVE-2021-35063
HIGHCVSS 7.5/10EPSS 1.97%
Last modified
CVE-2021-35063 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion.". EPSS estimates a 1.97% chance of exploitation in the next 30 days.
Description
Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion."
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oisf | Suricata | < 5.0.7 |
| Oisf | Suricata | >= 6.0.0, < 6.0.3 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 34 |
| Fedoraproject | Fedora | 35 |
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990835Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1980453Issue Tracking, Third Party Advisory
- https://forum.suricata.io/t/suricata-6-0-3-and-5-0-7-released/1489Release Notes, Vendor Advisory
- https://github.com/OISF/suricata/releasesThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-35063Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990835Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1980453Issue Tracking, Third Party Advisory
- https://forum.suricata.io/t/suricata-6-0-3-and-5-0-7-released/1489Release Notes, Vendor Advisory
- https://github.com/OISF/suricata/releasesThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-35063Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-35063?
Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion."
How severe is CVE-2021-35063?
CVE-2021-35063 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.97% probability of exploitation in the next 30 days.
How do I fix CVE-2021-35063?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
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- CVE-2021-3506An out-of-bounds (OOB) memory access flaw was found in fs/f2…7.1
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- CVE-2021-35069Improper validation of data length received from DMA buffer …7.8
Are you affected by CVE-2021-35063?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST