CVE-2026-45815

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.

Score

CVSS 3.1 7.5 High

Status

Analyzed - security@apache.org

Published

2026-07-24

Last modified

2026-10-24

Weaknesses

CWE-617

Affected products

• Nimble (Apache)
• Apache Nimble (Apache Software Foundation)

References

• https://github.com/apache/mynewt-nimble/commit/fae6a4874309ba0175d2c444e20f8a6bde007425
• https://lists.apache.org/thread/3d09hgo5zmm7dnryst3tb9857hk1bbos
• http://www.openwall.com/lists/oss-security/2026/07/24/14