CVE-2022-40279

Name: CVE-2022-40279
Creator: NVD / NIST
Published: 2022-09-29T03:15:15.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2022-40279 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Samsung TizenRT through 3.0_GBM (and 3.1_PRE). l2_packet_receive_timeout in wpa_supplicant/src/l2_packet/l2_packet_pcap.c has a missing check on the return value of pcap_dispatch, leading to a denial of service (malfunction).. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

An issue was discovered in Samsung TizenRT through 3.0_GBM (and 3.1_PRE). l2_packet_receive_timeout in wpa_supplicant/src/l2_packet/l2_packet_pcap.c has a missing check on the return value of pcap_dispatch, leading to a denial of service (malfunction).

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-252

Affected Software

Vendor	Product	Versions	Update
Samsung	Tizenrt	1.0	M1
Samsung	Tizenrt	1.1	—
Samsung	Tizenrt	2.0	Gbm M1
Samsung	Tizenrt	3.0	Gbm
Samsung	Tizenrt	3.1	Pre

References

https://github.com/Samsung/TizenRT/blob/f8f776dd183246ad8890422c1ee5e8f33ab2aaaf/external/wpa_supplicant/src/l2_packet/l2_packet_pcap.c#L181Exploit, Third Party Advisory
https://github.com/Samsung/TizenRT/issues/5629Issue Tracking, Third Party Advisory
https://linux.die.net/man/3/pcap_dispatchTechnical Description, Third Party Advisory
https://github.com/Samsung/TizenRT/blob/f8f776dd183246ad8890422c1ee5e8f33ab2aaaf/external/wpa_supplicant/src/l2_packet/l2_packet_pcap.c#L181Exploit, Third Party Advisory
https://github.com/Samsung/TizenRT/issues/5629Issue Tracking, Third Party Advisory
https://linux.die.net/man/3/pcap_dispatchTechnical Description, Third Party Advisory

Timeline

Published: Sep 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-40279?

How severe is CVE-2022-40279?

CVE-2022-40279 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2022-40279?

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-2022-40279?

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

Scan your code now

Source: NVD / NIST