What is CVE-2021-35063?

CVE-2021-35063 is a high-severity software vulnerability with a CVSS score of 7.5. Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion."

Is CVE-2021-35063 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 2%.

What products does CVE-2021-35063 affect?

Tracked products affected include Suricata. Check the version you run to see whether it is affected.

How do I fix CVE-2021-35063?

Apply the vendor fix promptly. Upgrade affected products to a fixed version.

← All products

CVE-2021-35063

HIGH severity · CVSS 7.5

7.5CVSS HIGH

Summary

Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion."

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactNone

Integrity impactNone

Availability impactHigh

Exploit probability (EPSS)2%

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Suricata

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

NVD record
https://forum.suricata.io/t/suricata-6-0-3-and-5-0-7-released/1489Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990835Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1980453Advisory
https://github.com/OISF/suricata/releasesAdvisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JU27J2ZYG6FBDL5CERE6FBB4ZFGHOROE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XEP7PWY4LRT2R4MFLV7JIJRYZEZ7RQFL/
https://security-tracker.debian.org/tracker/CVE-2021-35063Advisory