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.
Published 2023-02-10 04:15:11
Updated 2023-02-21 17:14:59
Source JPCERT/CC
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-43501

0.15%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-43501

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.1
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.9
5.2
NIST

CWE ids for CVE-2022-43501

  • The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.
    Assigned by:
    • nvd@nist.gov (Primary)
    • vultures@jpcert.or.jp (Secondary)

References for CVE-2022-43501

Products affected by CVE-2022-43501

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