CVE-2025-52435

Summary

J2EE Misconfiguration: Data Transmission Without Encryption vulnerability in Apache NimBLE.

Improper handling of Pause Encryption procedure on Link Layer results in a previously encrypted connection being left in un-encrypted state allowing an eavesdropper to observe the remainder of the exchange. This issue affects Apache NimBLE: through <= 1.8.0.

Users are recommended to upgrade to version 1.9.0, which fixes the issue.

Affected Software

Weaknesses

• CWE-5 J2EE Misconfiguration: Data Transmission Without Encryption

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/01/08/1

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/apache/mynewt-nimble/commit/164f1c23c18a290908df76ed83fe848bfe4a4903
• https://github.com/apache/mynewt-nimble/commit/ec3d75e909fa6dcadf1836fefc4432794a673d18
• https://lists.apache.org/thread/ow8dzpsqfh9llfclh5fzh6z237brzc0s

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