What’s Vulnerable › Vulnerabilities
CVE-2022-43972: Null pointer dereference in Linksys WRT54GL
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.4% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-01-09 · updated 2026-06-17
- Weakness: CWE-476
Description
A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.
Affected products
- Linksys WRT54GL Wireless-G Broadband Router: through 4.30.18.006
References
- https://youtu.be/73-1lhvJPNg
- https://youtu.be/RfWVYCUBNZ0
- https://youtu.be/TeWAmZaKQ_w
- https://youtu.be/73-1lhvJPNg
- https://youtu.be/RfWVYCUBNZ0
- https://youtu.be/TeWAmZaKQ_w
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