zephyrproject-rtos Zephyr CAN Frame resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, was found in zephyrproject-rtos Zephyr (Project Management Software) (version unknown). Affected is an unknown functionality of the component CAN Frame Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

The denial-of-service can be triggered by transmitting a carefully crafted CAN frame on the same CAN network as the vulnerable node. The frame must have a CAN ID matching an installed filter in the vulnerable node (this can easily be guessed based on CAN traffic analyses). The frame must contain the opposite RTR bit as what the filter installed in the vulnerable node contains (if the filter matches RTR frames, the frame must be a data frame or vice versa).

The weakness was released 10/31/2022 as GHSA-hx5v-j59q-c3j8. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2022-2741 since 08/09/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Applying a patch is able to eliminate this problem.






  • open-source

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 8.2
CNA Vector (Zephyr Project): 🔒



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Resource consumption
CWE: CWE-400 / CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

0-Day Time: 🔒


08/09/2022 CVE reserved
10/31/2022 +83 days Advisory disclosed
10/31/2022 +0 days VulDB entry created
11/30/2022 +30 days VulDB last update


Advisory: GHSA-hx5v-j59q-c3j8
Status: Confirmed

CVE: CVE-2022-2741 (🔒)


Created: 10/31/2022 09:26 PM
Updated: 11/30/2022 08:06 AM
Changes: 10/31/2022 09:26 PM (40), 11/30/2022 08:06 AM (22)
Complete: 🔍


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