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ID

VAR-202301-0652


CVE

CVE-2022-43972


TITLE

WRT54GL Wireless-G Broadband Router  In  NULL  Pointer dereference vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2023-001880

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. Linksys WRT54GL is a wireless router from Linksys, an American company. Attackers can exploit this vulnerability to cause a denial of service attack

Trust: 2.16

sources: NVD: CVE-2022-43972 // JVNDB: JVNDB-2023-001880 // CNVD: CNVD-2025-02591

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-02591

AFFECTED PRODUCTS

vendor:linksysmodel:wrt54glscope:lteversion:4.30.18.006

Trust: 1.0

vendor:シスコシステムズ linksysmodel:wrt54glscope:lteversion:linksys wrt54gl firmware 4.30.18.006 and earlier

Trust: 0.8

vendor:シスコシステムズ linksysmodel:wrt54glscope:eqversion: -

Trust: 0.8

vendor:linksysmodel:wrt54glscope:lteversion:<=4.30.18.006

Trust: 0.6

sources: CNVD: CNVD-2025-02591 // JVNDB: JVNDB-2023-001880 // NVD: CVE-2022-43972

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2022-43972
value: HIGH

Trust: 1.0

trellixpsirt@trellix.com: CVE-2022-43972
value: MEDIUM

Trust: 1.0

NVD: CVE-2022-43972
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-02591
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202301-602
value: HIGH

Trust: 0.6

CNVD: CNVD-2025-02591
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2022-43972
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

trellixpsirt@trellix.com: CVE-2022-43972
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2022-43972
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2025-02591 // JVNDB: JVNDB-2023-001880 // CNNVD: CNNVD-202301-602 // NVD: CVE-2022-43972 // NVD: CVE-2022-43972

PROBLEMTYPE DATA

problemtype:CWE-476

Trust: 1.0

problemtype:NULL Pointer dereference (CWE-476) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2023-001880 // NVD: CVE-2022-43972

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202301-602

TYPE

code problem

Trust: 0.6

sources: CNNVD: CNNVD-202301-602

PATCH

title:Linksys WRT54GL Wireless-G WiFi Routerurl:https://www.linksys.com/support-product?sku=WRT54GL

Trust: 0.8

sources: JVNDB: JVNDB-2023-001880

EXTERNAL IDS

db:NVDid:CVE-2022-43972

Trust: 3.8

db:JVNDBid:JVNDB-2023-001880

Trust: 0.8

db:CNVDid:CNVD-2025-02591

Trust: 0.6

db:CNNVDid:CNNVD-202301-602

Trust: 0.6

sources: CNVD: CNVD-2025-02591 // JVNDB: JVNDB-2023-001880 // CNNVD: CNNVD-202301-602 // NVD: CVE-2022-43972

REFERENCES

url:https://youtu.be/73-1lhvjpng

Trust: 2.2

url:https://youtu.be/tewamzakq_w

Trust: 1.6

url:https://youtu.be/rfwvycubnz0

Trust: 1.6

url:https://nvd.nist.gov/vuln/detail/cve-2022-43972

Trust: 0.8

url:https://www.youtube.com/watch?v=73-1lhvjpng

Trust: 0.8

url:https://www.youtube.com/watch?v=tewamzakq_w

Trust: 0.8

url:https://www.youtube.com/watch?v=rfwvycubnz0

Trust: 0.8

url:https://cxsecurity.com/cveshow/cve-2022-43972/

Trust: 0.6

sources: CNVD: CNVD-2025-02591 // JVNDB: JVNDB-2023-001880 // CNNVD: CNNVD-202301-602 // NVD: CVE-2022-43972

SOURCES

db:CNVDid:CNVD-2025-02591
db:JVNDBid:JVNDB-2023-001880
db:CNNVDid:CNNVD-202301-602
db:NVDid:CVE-2022-43972

LAST UPDATE DATE

2025-02-09T22:47:19.312000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-02591date:2025-02-08T00:00:00
db:JVNDBid:JVNDB-2023-001880date:2023-05-17T09:00:00
db:CNNVDid:CNNVD-202301-602date:2023-01-16T00:00:00
db:NVDid:CVE-2022-43972date:2023-01-13T16:58:23.273

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-02591date:2025-02-07T00:00:00
db:JVNDBid:JVNDB-2023-001880date:2023-05-17T00:00:00
db:CNNVDid:CNNVD-202301-602date:2023-01-09T00:00:00
db:NVDid:CVE-2022-43972date:2023-01-09T21:15:10.920