CVE-2025-56233

Sept. 29, 2025, 7:34 p.m.

None
No Score

Description

Openindiana, kernel SunOS 5.11 has a denial of service vulnerability. For the processing of TCP packets with RST or SYN flag set, Openindiana has a wide acceptable range of sequence numbers. It does not require the sequence number to exactly match the next expected sequence value, just to be within the current receive window, which violates RFC5961. This flaw allows attackers to send multiple random TCP RST/SYN packets to hit the acceptable range of sequence numbers, thereby interrupting normal connections and causing a denial of service attack.

Product(s) Impacted

Vendor Product Versions
Openindiana
  • Openindiana
  • *
Sun
  • Sunos
  • 5.11

Weaknesses

Common security weaknesses mapped to this vulnerability.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o openindiana openindiana / / / / / / / /
o sun sunos 5.11 / / / / / / /

References

https://github.com/zq-star/TCP-Vuln-Report/blob/master/Openindiana%20minimal/tcp-rst-syn/openindiana-minimal-tcp-rst-syn.md

Tags

cve@mitre.org
2025-09-29
CVE-2025-56233

Timeline

Published: Sept. 29, 2025, 5:15 p.m.
Last Modified: Sept. 29, 2025, 7:34 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cve@mitre.org

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.