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CVE-2023-49722

17
FAUCET Score

CVE-2023-49722 describes a vulnerability in Bosch BCC101, BCC102, and BCC50 smart thermostat firmware, where network port 8899 is unintentionally left open. This allows an attacker on the same Wi-Fi network to connect to the device. Rated as Medium severity (CVSS 6.5), the vulnerability has a low attack complexity and requires network adjacency, with a potential impact of high integrity compromise but no confidentiality or availability impact. There is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.13.20, < 4.13.33CPE matchmatch criteria
cpe:2.3:o:bosch:bcc101_firmware:*:*:*:*:*:*:*:*
>= 4.13.20, < 4.13.33CPE matchmatch criteria
cpe:2.3:o:bosch:bcc102_firmware:*:*:*:*:*:*:*:*
>= 4.13.20, < 4.13.33CPE matchmatch criteria
cpe:2.3:o:bosch:bcc50_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 53rd percentile among its peer group of 1,802 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

dockervendor investigatingvia llm_extracted
gatekeepervendor investigatingvia llm_extracted
jenkinsvendor investigatingvia llm_extracted
webexvendor investigatingvia llm_extracted

Vendor Advisories (4)

webexllm-webex-ede62d25c4fd4a5cHIGH

Open Port 8899 in BCC Thermostat Product

Jan 9, 2024
gatekeeperllm-gatekeeper-98801e2a86f5a273HIGH

Open Port 8899 in BCC Thermostat Product

Jan 9, 2024
jenkinsllm-jenkins-e308ad1dd47adb1cHIGH

Open Port 8899 in BCC Thermostat Product

Jan 9, 2024
dockerllm-docker-d99682953b287473HIGH

Open Port 8899 in BCC Thermostat Product

Jan 9, 2024

References

psirt.bosch.com / security-advisories/BOSCH-SA-473852.html
Vendor Advisory