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Vulnerability record · CVE-2026-45815 · published 24 July 2026

CVE-2026-45815: Apache nimble vulnerability

Apache · Nimble

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.

7.5 CVSS 3.1 High EPSS 1.0% · top 37.7% CWE-617 · CWE-617
7.5CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
27 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/apache/mynewt-nimble/commit/fae6a4874309ba0175d2c444e20f8a6bde007425 Patch
https://lists.apache.org/thread/3d09hgo5zmm7dnryst3tb9857hk1bbos Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/24/14 Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2026-45813Apache nimble out-of-bounds write vulnerabilityOut-of-bounds Write, Integer Underflow (Wrap or Wraparound) vulnerability in Apache NimBLE BASS service. Improper validation when parsing BASS servic…EPSS 0.53%8.1CVE-2025-62235Apache nimble authentication bypass by spoofing vulnerabilityAuthentication Bypass by Spoofing vulnerability in Apache NimBLE. Receiving specially crafted Security Request could lead to removal of original bond…EPSS 0.38%7.5CVE-2026-45816Apache nimble null pointer dereference vulnerabilityNULL Pointer Dereference vulnerability in Apache NimBLE in LE Long Term Key Request event. This requires disabled asserts (otherwise assert would tri…EPSS 1.0%7.5CVE-2026-45811Apache nimble classic buffer overflow vulnerabilityBuffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Apache NimBLE. The HCI socket transport did not check whether…EPSS 0.48%7.5CVE-2025-52435Apache nimble vulnerabilityJ2EE Misconfiguration: Data Transmission Without Encryption vulnerability in Apache NimBLE. Improper handling of Pause Encryption procedure on Link L…EPSS 0.23%7.5CVE-2025-53477Apache nimble null pointer dereference vulnerabilityNULL Pointer Dereference vulnerability in Apache Nimble. Missing validation of HCI connection complete or HCI command TX buffer could lead to NULL po…EPSS 0.80%7.5CVE-2024-51569Apache nimble out-of-bounds read vulnerabilityOut-of-bounds Read vulnerability in Apache NimBLE. Missing proper validation of HCI Number Of Completed Packets could lead to out-of-bound access whe…EPSS 1.2%7.5CVE-2024-24746Apache nimble vulnerabilityLoop with Unreachable Exit Condition ('Infinite Loop') vulnerability in Apache NimBLE.  Specially crafted GATT operation can cause infinite loop in G…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2026-45815), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.