Cyber Resilience

CVE-2022-43972

MediumPublic PoC

Published: 09 January 2023

Published
09 January 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0151 81.6th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-43972 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Linksys Wrt54Gl Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 18.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

invoking the AddPortMapping action.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

linksys
wrt54gl firmware
≤ 4.30.18.006

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References