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Medium severity · published Dec 19, 2022
CVE-2022-46401
The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PauseEncReqPlainText before pairing is complete
5.4
CVSS
0.7%
EPSS
No
On KEV
Description
The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PauseEncReqPlainText before pairing is complete.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BF
Bm64 Firmware · Microchip
1.43 · source: NVD
BF
Bm70 Firmware · Microchip
1.43 · source: NVD
BF
Bm71 Firmware · Microchip
1.43 · source: NVD
BF
Bm77 Firmware · Microchip
1.43 · source: NVD
BF
Bm78 Firmware · Microchip
1.43 · source: NVD
BF
Bm83 Firmware · Microchip
1.43 · source: NVD
PL
Pic Lightblue Explorer Demo Firmware · Microchip
4.2_dt100112 · source: NVD
PF
Pic32cx1012bz25048 Firmware · Microchip
All versions, or not specified · source: NVD
RF
Rn4678 Firmware · Microchip
1.43 · source: NVD
RF
Rn4870 Firmware · Microchip
1.43 · source: NVD
RF
Rn4871 Firmware · Microchip
1.43 · source: NVD
WF
Wbz451 Firmware · Microchip
All versions, or not specified · source: NVD
Affected product
BF
Bm64 Firmware
Microchip
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-46401
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-46401
Product
https://microchip.com
Exploit
https://www.computer.org/csdl/proceedings-article/sp/2023/933600a521/1He7Yja1AYM
Third Party Advisory
https://www.computer.org/csdl/proceedings/sp/2023/1He7WWuJExG
Vendor Advisory
https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/deviating-behaviors-in-bluetooth-le
More from Bm64 Firmware
7.5
CVE-2022-46399
The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) is unresponsive with ConReqTimeoutZero