CVE-2025-52435

7.5 highEPSS 0.2%

High (7.5) in apache nimble. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE: CWE-5
Published: 2026-01-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apache:nimble

References

https://github.com/apache/mynewt-nimble/commit/164f1c23c18a290908df76ed83fe848bfe4a4903
https://github.com/apache/mynewt-nimble/commit/ec3d75e909fa6dcadf1836fefc4432794a673d18
https://lists.apache.org/thread/ow8dzpsqfh9llfclh5fzh6z237brzc0s
http://www.openwall.com/lists/oss-security/2026/01/08/1

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