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CVE-2022-4873

CRITICALCVSS 9.8/10EPSS 7.17%

Last modified

CVE-2022-4873 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.. EPSS estimates a 7.17% chance of exploitation in the next 30 days.

Description

On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
7.17%

93.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NetcommwirelessNf20 Firmware< r6b025
NetcommwirelessNf20mesh Firmware< r6b025
NetcommwirelessNl1902 Firmware< r6b025

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-4873?
On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.
How severe is CVE-2022-4873?
CVE-2022-4873 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 7.17% probability of exploitation in the next 30 days.
How do I fix CVE-2022-4873?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-4873?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST