VulnerabilityModified
CVE-2021-37592
Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments.
CRITICAL 9.8EPSS 1.60%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.60% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- oisf/suricata
- Source
- cve@mitre.org
References
- https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942Release Notes, Vendor Advisory
- https://github.com/OISF/suricata/releasesRelease Notes, Third Party Advisory
- https://redmine.openinfosecfoundation.org/issues/4569Permissions Required, Third Party Advisory
- https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942Release Notes, Vendor Advisory
- https://github.com/OISF/suricata/releasesRelease Notes, Third Party Advisory
- https://redmine.openinfosecfoundation.org/issues/4569Permissions Required, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.