What is CVE-2022-43972?

CVE-2022-43972 is a medium-severity vulnerability in Linksys Wrt54gl, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2023-01-09.

How severe is CVE-2022-43972?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Linksys Wrt54gl

CVE-2022-43972

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.

EPSS: 0.013 (67.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linksys Wrt54gl
Linksys Wrt54gl_firmware
Linksys Wrt54gl Wireless-g Broadband Router — versions Firmware

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

trellixpsirt@trellix.com (Exploit, Third Party Advisory)
trellixpsirt@trellix.com (Exploit, Third Party Advisory)
trellixpsirt@trellix.com (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-43972?: CVE-2022-43972 is a medium-severity vulnerability in Linksys Wrt54gl, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2023-01-09.
How severe is CVE-2022-43972?: Medium severity. CVSS v3 base score is 6.5 out of 10.