Vulnerability in Elwsc Kasago Ipv4
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (44.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Elwsc Kasago Ipv4
- Elwsc Kasago Ipv4 Light
- Elwsc Kasago Ipv6\/v4 Dual
- Elwsc Kasago Mobile Ipv6
- Zuken Elmic Kasago Ipv4 — versions prior to Ver6.0.1.34
- Zuken Elmic Kasago Ipv4 Light — versions prior to Ver6.0.1.34
- Zuken Elmic Kasago Ipv6/v4 Dual — versions prior to Ver6.0.1.34
- Zuken Elmic Kasago Mobile Ipv6 — versions prior to Ver6.0.1.34
Weakness classification (CWE)
References
- www.elwsc.co.jp/news/6352 (Vendor Advisory)
- jvn.jp/en/vu/JVNVU99551468/ (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2022-43501?
- CVE-2022-43501 is a critical-severity vulnerability in Elwsc Kasago Ipv4, classified under Use of Insufficiently Random Values. CVSS score: 9.1/10. Published 2023-02-10.
- How severe is CVE-2022-43501?
- Critical severity. CVSS v3 base score is 9.1 out of 10.