CVE-2023-44431 | BlueZ Audio Profile AVRCP Stack-based Buffer Overflow Remote Code Execution Vulnerability

BlueZ Audio Profile AVRCP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code via Bluetooth on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious device. The specific flaw exists within the handling of the AVRCP protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19909.

Published: 2024-05-03 Last update: 2025-07-08 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-44431 is rated Moderate Risk (63/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.06%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-44431

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-04 2.46% 3.06% +0.60%
2 2025-12-21 2.58% 2.46% -0.12%
3 2025-11-24 — 2.58% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-44431

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.0 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.1 5.9 [email protected]
7.1 3.0 HIGH
CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]

Weakness enumeration for CVE-2023-44431

OS Trackers for CVE-2023-44431

vendor priority summary link
alpine — CVE-2023-44431: 1 source package rows (bluez); 2 state rows across 2 repos (3.17-main, 3.18-main); fixed 0, open 2. https://security.alpinelinux.org/vuln/CVE-2023-44431
debian not yet assigned CVE-2023-44431 not yet assigned priority: Debian including 1 source packages (bluez), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2023-44431
redhat medium — https://access.redhat.com/security/cve/CVE-2023-44431
suse high CVE-2023-44431 severity important: SUSE including 16 source package names (bluez, bluez-5.72-2.el9, …), 128 product×package rows across 42 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 9, … (42 product lines)): Known Not Affected 123, Fixed 5. https://www.suse.com/security/cve/CVE-2023-44431/
ubuntu medium CVE-2023-44431 medium priority: Ubuntu including 1 source packages (bluez), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): deferred 6, ignored 2, needs-triage 1. https://ubuntu.com/security/CVE-2023-44431

Affected software / configurations for CVE-2023-44431

Vendor Product Version Raw CPE
bluez bluez 5.66 cpe:2.3:a:bluez:bluez:5.66:*:*:*:*:*:*:*

References for CVE-2023-44431

cvelogic Threat Intelligence