CVE-2026-45813

Out-of-bounds Write, Integer Underflow (Wrap or Wraparound) vulnerability in Apache NimBLE BASS service. Improper validation when parsing BASS service "Add Source" and "Modify Source" operation PDU could results in stack buffer overflow or arbitrary out-of-bound read. This can be triggered by nearby devices over Bluetooth connection, however pairing is required prior to accessing BASS service, which depending on device configuration may or may not require user action. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/apache/mynewt-nimble/pull/2232	Issue Tracking Patch
https://lists.apache.org/thread/vc1ny73w243z5wr6t0y10gc6t2c9cytw	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/24/13	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:nimble:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-24 13:18

Updated : 2026-07-27 14:41

NVD link : CVE-2026-45813

Mitre link : CVE-2026-45813

CVE.ORG link : CVE-2026-45813

JSON object : View

Products Affected

apache

nimble

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

CWE-787

Out-of-bounds Write

{"id": "CVE-2026-45813", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45813", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-24T18:18:32.647046Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@apache.org", "affectedData": [{"vendor": "Apache Software Foundation", "product": "Apache NimBLE", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.9.0"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-24T13:18:24.087", "references": [{"url": "https://github.com/apache/mynewt-nimble/pull/2232", "tags": ["Issue Tracking", "Patch"], "source": "security@apache.org"}, {"url": "https://lists.apache.org/thread/vc1ny73w243z5wr6t0y10gc6t2c9cytw", "tags": ["Mailing List", "Vendor Advisory"], "source": "security@apache.org"}, {"url": "http://www.openwall.com/lists/oss-security/2026/07/24/13", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-191"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "Out-of-bounds Write, Integer Underflow (Wrap or Wraparound) vulnerability in Apache NimBLE BASS service.\nImproper validation when parsing BASS service\u00a0 \"Add Source\" and \"Modify Source\" operation PDU could results in stack buffer overflow or arbitrary out-of-bound read.\n\n\nThis can be triggered by nearby devices over Bluetooth connection, however pairing is required prior to accessing BASS service, which depending on device configuration may or may not require user action.\n\nThis issue affects Apache NimBLE: through 1.9.0.\n\nUsers are recommended to upgrade to version 1.10.0, which fixes the issue."}], "lastModified": "2026-07-27T14:41:12.090", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:nimble:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "86B88229-791C-4BFE-824F-9D9D981C81C9", "versionEndExcluding": "1.10.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}