High 7.5Published Jan 10, 2026

CVE-2025-52435Apache Mynewt NimBLE: Invalid error handling in pause encryption procedure in NimBLE controller

Updated under an hour ago (Oct 27, 2026, 3:10 PM ET)

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It affects Apache Software Foundation Apache Mynewt NimBLE and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache Mynewt NimBLE

Exploited in the last 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.

CVSS: 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-5
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Analyzed
Record last updated: Jan 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Mynewt NimBLE apache_software_foundation:apache_mynewt_nimble (from the name)	through 1.8.0	CNA record
apache nimble apache:nimble	before 1.9.0	NVD

References

References

https://github.com/apache/mynewt-nimble/commit/164f1c23c18a290908df76ed83fe848bfe4a4903	patch
https://github.com/apache/mynewt-nimble/commit/ec3d75e909fa6dcadf1836fefc4432794a673d18	patch
https://lists.apache.org/thread/ow8dzpsqfh9llfclh5fzh6z237brzc0s	vendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/01/08/1	mailing-list, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.