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CVE-2022-43501

CRITICALCVSS 9.1/10EPSS 0.56%

Last modified

CVE-2022-43501 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.1/10

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

EPSS Probability
0.56%

42.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

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

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 current or future TCP connections and either hijack existing ones or spoof future ones.
How severe is CVE-2022-43501?
CVE-2022-43501 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.
How do I fix CVE-2022-43501?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-43501?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST