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CVE-2026-45812

Apache NimBLE: OOB Read via sizeof(pointer) in Legacy Advertising Report Handler

Published: Jul 24, 2026Updated: Jul 24, 2026 Sources: CVE List NVDCWE-131
6.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 80.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

Incorrect Calculation of Buffer Size vulnerability in Apache NimBLE when processing Legacy Advertising Report HCI event. When a single HCI advertising report event bundles multiple reports, NimBLE miscalculated the offset to the next report. This can cause the host to read past the end of the buffer and deliver a GAP event with bogus data to the application. Severity is low: NimBLE's own controller never batches multiple reports into one event, so this only matters when NimBLE's host is paired with a third-party controller that does. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-131

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache NimBLEOn-premLibrary
OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/apache/mynewt-nimble/commit/605c7585408bc3674818eeb7b6f478a8aefe9746
github.com
https://lists.apache.org/thread/rll5m1ly2vg8jr76lp5ohrtspr5vlofy
lists.apache.org
http://www.openwall.com/lists/oss-security/2026/07/24/12
openwall.com

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