Backend impersonation via disabled certificate verification
Published Jan 22, 2026 · Updated Jan 22, 2026
Improper certificate validation in Bosch Infotainment system ECU 283C30861E allows man-in-the-middle attackers to impersonate an update server. The app_redbend_out.out client leaves verification at SSL_VERIFY_NONE, causing callback failures to be ignored and self-signed server certificates to be accepted. Exploitation depends on the ECU initiating a Redbend session while the attacker controls its network path; the published impact is limited to update-channel data disclosure.
Summary
What happened
Improper certificate validation in Bosch Infotainment system ECU 283C30861E allows man-in-the-middle attackers to impersonate an update server. The app_redbend_out.out client leaves verification at SSL_VERIFY_NONE, causing callback failures to be ignored and self-signed server certificates to be accepted. Exploitation depends on the ECU initiating a Redbend session while the attacker controls its network path; the published impact is limited to update-channel data disclosure.
The record
- CVE
- CVE-2025-32057
- Published
- Jan 22, 2026
- Updated
- Jan 22, 2026
- Vendor
- Robert Bosch GmbH
- Product
- Infotainment system ECU
- Classifications
- CWE-295, CAPEC-115, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 22, 2026CVE publishedPublication date reported by the CVE source.
- Jan 22, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=283C30861E
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Technologies
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Your stack
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