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CRITICAL · 9.1

CVE-2022-43501

KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source. An attacker may be able to determine the ISN of the curren...

Vulnerability Description

KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source. An attacker may be able to determine the ISN of the current or future TCP connections and either hijack existing ones or spoof future ones.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
ElwscKasago Ipv4< 6.0.1.34
ElwscKasago Ipv4 Light< 6.0.1.34
ElwscKasago Ipv6\/V4 Dual< 6.0.1.34
ElwscKasago Mobile Ipv6< 6.0.1.34

Related Weaknesses (CWE)

CWE-330

References

FAQ

What is CVE-2022-43501?

CVE-2022-43501 is a vulnerability with a CVSS score of 9.1 (CRITICAL). KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source. An attacker may be able to determine the ISN of the curren...

How severe is CVE-2022-43501?

CVE-2022-43501 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2022-43501?

Check the references section above for vendor advisories and patch information. Affected products include: Elwsc Kasago Ipv4, Elwsc Kasago Ipv4 Light, Elwsc Kasago Ipv6\/V4 Dual, Elwsc Kasago Mobile Ipv6.