CVE-2023-49722
Bosch Bcc101 Firmware 4.13.20 – 4.13.33
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:HSummary
CVE-2023-49722 is a high-severity Excessive Attack Surface (CWE-1125) vulnerability in Bosch Bcc101 Firmware. Its CVSS base score is 8.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 36th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to CM-7 (Least Functionality) and SC-25 (Thin Nodes) — see the control section below for these in your framework.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-53650
Vulnerability Data
Network port 8899 open in WiFi firmware of BCC101/BCC102/BCC50 products, that allows an attacker to connect to the device via same WiFi network.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 8 hardening rules · 4 OS baselines
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Mitigating Controls (NIST 800-53 r5) AI
Least Functionality directly limits the number of exposed interfaces and services, structurally preventing an excessive attack surface from being introduced.
Thin nodes enforce minimal functionality and storage, directly limiting the quantitative attack surface.
Least privilege reduces the privileges available through existing interfaces but does not remove the interfaces themselves.
Separating user and system functionality reduces reachable entry points and therefore shrinks the attack surface.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices explicitly include attack-surface measurement and minimization during design and implementation.
Hardened baselines and configuration management directly reduce unnecessary services, ports, and features that enlarge attack surface.
Restricting execution to only permitted software prevents addition of extraneous components that increase attack surface.
Prioritization helps focus reduction efforts on high-value assets but does not itself limit the quantitative attack surface.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Network segregation limits lateral exposure and therefore the effective attack surface.
Secure architecture principles explicitly call for minimizing the attack surface through least functionality.
Configuration management directly limits unnecessary services, ports and features that enlarge the attack surface.
Network security controls (firewalls, segmentation, hardening) shrink the externally reachable attack surface.
Restricting network services reduces exposed interfaces, though broader attack-surface decisions may still remain.
Secure SDLC practices include attack-surface reduction reviews during design and release.
Hardening callouts derived
Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).
Oracle Linux 8 (2 rules)
- V-248823 OL 8 must not have the telnet-server package installed. prevents CWE-1125
- V-248827 OL 8 must not have the rsh-server package installed. prevents CWE-1125
RHEL 7 (2 rules)
- V-204502 The Red Hat Enterprise Linux operating system must not have the telnet-server package installed. prevents CWE-1125
- V-204442 The Red Hat Enterprise Linux operating system must not have the rsh-server package installed. prevents CWE-1125
RHEL 8 (1 rule)
- V-230487 RHEL 8 must not have the telnet-server package installed. prevents CWE-1125