CVE-2026-45815

High

Description

Reachable Assertion vulnerability in Apache NimBLE. A specially crafted ATT Read Multiple Variable Response (BLE_ATT_OP_READ_MULT_VAR_RSP) may trigger assert in ATT parser. Severity is medium as this requires DUT to first send ATT Read Multiple Variable Request. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Apache Nimble

PublishedJul 24, 2026

First seenJul 24, 2026

Weakness typeCWE-617CWE-617

How to fix

Update

apache nimble1.10.0 or later

Patches

github.com/apache/mynewt-nimble/commit/fae6a4874309ba0175d2c444e20f8a6bde007425

Vendor advisories

lists.apache.org/thread/3d09hgo5zmm7dnryst3tb9857hk1bbos

Affected products

Product	Affected versions	Fixed in
apache nimble	v < 1.10.0	1.10.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.