Security readout for executives and security teams
CVE-2020-10135 affects Bluetooth Classic BR/EDR pairing and authentication. A nearby unauthenticated attacker may impersonate a previously paired device and authenticate without knowing the shared link key. The risk is localized to Bluetooth range and affects confidentiality and integrity, not availability. Organizations may be exposed where laptops, phones, peripherals, embedded devices, industrial systems, or Linux Bluetooth stacks support BR/EDR v5.2 or earlier and retain trusted pairings. Actual exposure depends on vendor implementation, Bluetooth range, device roles, and whether vendor updates were applied. Treat this as a moderate, proximity-limited risk. Prioritize exposed mobile, endpoint, and embedded fleets in sensitive facilities, then fold remediation into normal firmware and endpoint patch cycles unless critical operations depend on Bluetooth trust relationships. Mitigation focus: Check Bluetooth SIG, OS, firmware, and device vendor guidance for CVE-2020-10135 updates.; Apply vendor Bluetooth stack or firmware updates where available.; Disable Bluetooth BR/EDR where business operations do not require it..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-757: Exact CWE lookup
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Open ATT&CK lookupCVE-2020-10135 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- VU#647177CVE reference · third-party-advisory, x_refsource_CERT-VN
- https://francozappa.github.io/about-bias/CVE reference · x_refsource_MISC
- https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/bias-vulnerability/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.