CVE-2026-46532 | ESF-IDF: Heap Out-of-Bounds Read in Bluedroid AVRCP Target Parser

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.6, 5.3.5, 5.4.4, 5.5.3, and 6.0, an out-of-bounds read exists in the BlueDroid AVRCP vendor-command parser (avrc_pars_vendor_cmd() in components/bt/host/bluedroid/stack/avrc/avrc_pars_tg.c). This issue has been patched in versions 5.2.7, 5.3.6, 5.4.5, 5.5.4, and 6.0.1.

Published: 2026-06-09 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-46532 is rated Low Risk (23.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.23%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2026-46532

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 2026-06-15 0.03% 0.23% +0.20%
2 2026-06-10 — 0.03% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-46532

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L 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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.1 2.5 [email protected]

Weakness enumeration for CVE-2026-46532

Affected software / configurations for CVE-2026-46532

Vendor Product Version Raw CPE
espressif esp-idf 5.2.6 cpe:2.3:a:espressif:esp-idf:5.2.6:*:*:*:*:*:*:*
espressif esp-idf 5.3.5 cpe:2.3:a:espressif:esp-idf:5.3.5:*:*:*:*:*:*:*
espressif esp-idf 5.4.4 cpe:2.3:a:espressif:esp-idf:5.4.4:*:*:*:*:*:*:*
espressif esp-idf 5.5.3 cpe:2.3:a:espressif:esp-idf:5.5.3:*:*:*:*:*:*:*
espressif esp-idf 6.0 cpe:2.3:a:espressif:esp-idf:6.0:*:*:*:*:*:*:*

References for CVE-2026-46532

cvelogic Threat Intelligence