High severity · published Jan 9, 2023
CVE-2022-43972
A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006
7.5
CVSS
1.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WF
Wrt54gl Firmware · Linksys
through 4.30.18.006 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-43972
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-43972
Exploit
https://youtu.be/73-1lhvJPNg
Exploit
https://youtu.be/RfWVYCUBNZ0
Exploit
https://youtu.be/TeWAmZaKQ_w
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7.2
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