HOMEVULNERABILITIESCVE-2025-52435
HIGH

CVE-2025-52435

CWE-5Published: January 10, 2026· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2025-52435 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

Apache1 product(s)
nimble
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (4)

→
https://github.com/apache/mynewt-nimble/commit/164f1c23c18a290908df76ed83fe848bfe4a4903Patch
→
https://github.com/apache/mynewt-nimble/commit/ec3d75e909fa6dcadf1836fefc4432794a673d18Patch
→
https://lists.apache.org/thread/ow8dzpsqfh9llfclh5fzh6z237brzc0sMailing List · Vendor Advisory
→
http://www.openwall.com/lists/oss-security/2026/01/08/1Mailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2025-52435
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-5
CISA KEVNo
Affected1 vendor(s)
PublishedJan 10, 2026

Related CVEs (CWE-5)

CVE-2025-65297
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-52435 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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