Home/CVE/J2EE Misconfiguration: Data Transmission Without Encryption vulnerability in Apache NimBLE. Improper handling of Pause
CVE

CVE-2025-52435

J2EE Misconfiguration: Data Transmission Without Encryption vulnerability in Apache NimBLE. Improper handling of Pause

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.

HIGH · CVSS 7.5 EPSS 0.00048
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-5J2EE Misconfiguration: Data Transmission Without Encryption
▤

Affected Products & Versions

1
apache nimble< 1.9.0
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Jan 2026 · 10:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/apache/mynewt-nimble/commit/164f1c23c18a290908df76ed83fe848bfe4a4903Patch
https://github.com/apache/mynewt-nimble/commit/ec3d75e909fa6dcadf1836fefc4432794a673d18Patch
https://lists.apache.org/thread/ow8dzpsqfh9llfclh5fzh6z237brzc0sMailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/01/08/1Mailing ListThird Party Advisory
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