KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for…
Priority MEDIUM 48CWE-330Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00565 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ZUKEN Elmic | Kasago IPv6/v4 Dual | prior to Ver6.0.1.34 | — | No fix listed | CNA |
| ZUKEN Elmic | Kasago IPv4 | prior to Ver6.0.1.34 | — | No fix listed | CNA |
| ZUKEN Elmic | Kasago IPv4 Light | prior to Ver6.0.1.34 | — | No fix listed | CNA |
| ZUKEN Elmic | Kasago mobile IPv6 | prior to Ver6.0.1.34 | — | No fix listed | CNA |
- Kasago IPv6/v4 Dual VendorZUKEN Elmic Affected prior to Ver6.0.1.34 Fixed in — No fix listed CNA
- Kasago IPv4 VendorZUKEN Elmic Affected prior to Ver6.0.1.34 Fixed in — No fix listed CNA
- Kasago IPv4 Light VendorZUKEN Elmic Affected prior to Ver6.0.1.34 Fixed in — No fix listed CNA
- Kasago mobile IPv6 VendorZUKEN Elmic Affected prior to Ver6.0.1.34 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:elwsc:kasago_ipv4:*:*:*:*:*:*:*:* | before 6.0.1.34 | Vulnerable | Elwsc |
| cpe:2.3:a:elwsc:kasago_ipv4_light:*:*:*:*:*:*:*:* | before 6.0.1.34 | Vulnerable | Elwsc |
| cpe:2.3:a:elwsc:kasago_ipv6\/v4_dual:*:*:*:*:*:*:*:* | before 6.0.1.34 | Vulnerable | Elwsc |
| cpe:2.3:a:elwsc:kasago_mobile_ipv6:*:*:*:*:*:*:*:* | before 6.0.1.34 | Vulnerable | Elwsc |
- cpe:2.3:a:elwsc:kasago_ipv4:*:*:*:*:*:*:*:* Versions before 6.0.1.34 Vulnerable ·Elwsc
- cpe:2.3:a:elwsc:kasago_ipv4_light:*:*:*:*:*:*:*:* Versions before 6.0.1.34 Vulnerable ·Elwsc
- cpe:2.3:a:elwsc:kasago_ipv6\/v4_dual:*:*:*:*:*:*:*:* Versions before 6.0.1.34 Vulnerable ·Elwsc
- cpe:2.3:a:elwsc:kasago_mobile_ipv6:*:*:*:*:*:*:*:* Versions before 6.0.1.34 Vulnerable ·Elwsc
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-43501
- 2026-10-03 Alias added: GHSA-96qq-9h7m-67pw
References
Sources
- CVE-2022-43501 · CVE Program
- CVE-2022-43501 · NVD
- FIRST EPSS
- GHSA-96qq-9h7m-67pw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences