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CVE-2022-43972

MEDIUM
Published 2023-01-09T00:00:00.000Z
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CVSS Score

V3.1
6.5
/10
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.007
probability
of exploitation in the wild

There is a 0.7% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.720
Higher than 72.0% of all CVEs

Attack Vector Metrics

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Linksys

WRT54GL Wireless-G Broadband Router

Affected Versions:

Firmware

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-2p3f-3cj6-r8vv

Advisory 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 invoking the AddPortMapping action.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2022-43972
WEB https://youtu.be/73-1lhvJPNg
WEB https://youtu.be/RfWVYCUBNZ0
WEB https://youtu.be/TeWAmZaKQ_w

Advisory provided by GitHub Security Advisory Database. Published: January 9, 2023, Modified: January 13, 2023

References

https://youtu.be/73-1lhvJPNg
https://youtu.be/TeWAmZaKQ_w
https://youtu.be/RfWVYCUBNZ0
Published: 2023-01-09T00:00:00.000Z
Last Modified: 2025-04-09T14:22:24.605Z
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