CVE-2023-51589

Adjacent information disclosure via unchecked AVRCP element length

Published May 3, 2024 · Updated Aug 2, 2024

Out-of-bounds read in BlueZ 5.66 AVRCP parsing allows network-adjacent attackers to disclose memory through a malicious Bluetooth device. The parse_media_element routine fails to validate a user-supplied media-element length before reading beyond the allocated buffer. The target must connect to the device; direct impact is memory disclosure, while root code execution requires chaining with another flaw.

CVSS severity5.4
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in BlueZ 5.66 AVRCP parsing allows network-adjacent attackers to disclose memory through a malicious Bluetooth device. The parse_media_element routine fails to validate a user-supplied media-element length before reading beyond the allocated buffer. The target must connect to the device; direct impact is memory disclosure, while root code execution requires chaining with another flaw.

The record

CVE
CVE-2023-51589
Published
May 3, 2024
Updated
Aug 2, 2024
Vendor
BlueZ Project
Product
BlueZ
Classifications
CWE-125
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.66

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

BlueZ Project · BlueZversion=5.66

Published CVSS scores

5.4Zero Day InitiativeCVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:L
5.7NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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