PT-2026-1813 · Apache · Apache Nimble

CVE-2025-52435 · Published 2026-01-09 · Updated 2026-01-10

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Apache NimBLE versions through 1.8.0

Description A configuration issue exists where data transmission occurs without encryption. Specifically, improper handling of the Pause Encryption procedure on the Link Layer can result in a previously encrypted connection reverting to an unencrypted state, potentially allowing an eavesdropper to observe subsequent data exchange.

Recommendations Upgrade to version 1.9.0.

Exploit

Fix

Weakness Enumeration

CWE-5

Related Identifiers

CVE-2025-52435

Affected Products

Apache Nimble

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52435.json · Exploit
• https://github.com/apache/mynewt-nimble/commit/164f1c23c18a290908df76ed83fe848bfe4a4903 · Patch
• https://github.com/apache/mynewt-nimble/commit/ec3d75e909fa6dcadf1836fefc4432794a673d18 · Patch
• https://osv.dev/vulnerability/CVE-2025-52435 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-52435 · Security Note
• https://lists.apache.org/thread/ow8dzpsqfh9llfclh5fzh6z237brzc0s · Vendor Advisory
• http://openwall.com/lists/oss-security/2026/01/08/1 · Note
• https://twitter.com/oss_security/status/2009491711190552598 · Twitter Post
• https://twitter.com/CVEnew/status/2009932535782924490 · Twitter Post
• https://t.me/CVEtracker/41937 · Telegram Post