CVE-2021-23843 json
Lack of authentication mechanisms on the device
published 2022-01-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10769
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
The Bosch software tools AccessIPConfig.exe and AmcIpConfig.exe are used to configure certains settings in AMC2 devices. The tool allows putting a password protection on configured devices to restrict access to the configuration of an AMC2. An attacker can circumvent this protection and make unauthorized changes to configuration data on the device. An attacker can exploit this vulnerability to manipulate the device\'s configuration or make it unresponsive in the local network. The attacker needs to have access to the local network, typically even the same subnet.
Patch / fix
- Bosch AMS 4.0
- Bosch BIS 4.9.1
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Bosch AMS
- Bosch APE
- Bosch BIS
- Bosch AMC2
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
psirt.bosch.com
/security-advisories/BOSCH-SA-940448-BT.html
mitigation, vendor-advisory
Sources
- CVE List CVE-2021-23843
- NVD CVE-2021-23843
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