CVE-2026-46532
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 Updated Sources: cvelistV5, GitHub_M
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
0%
chance of exploitation in 30 days
CVSS base
4.6
MEDIUM
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 4.6 | CVSS 3.1 | MEDIUM | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-125
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Search application, proxy, and WAF logs for requests touching /bt/host/bluedroid/stack/avrc/avrc_pars_tg.c).
References
7 on the record
- github.com/espressif/esp-idf/security/advisories/GHSA-3pp8-42fh-3j3c
x_refsource_CONFIRM
- github.com/espressif/esp-idf/commit/56053c4d1f37955ccf296cf2f6dfd0f7ebd4fae6
x_refsource_MISC
- github.com/espressif/esp-idf/commit/60f9362f83a05942069532f357c234cd5e5d4302
x_refsource_MISC
- github.com/espressif/esp-idf/commit/7c004d3fe3022f5f0db98dd1b2d0648a3a9cfb3f
x_refsource_MISC
- github.com/espressif/esp-idf/commit/8746e5f7e762ead84d2902edec34d84cdd701b2b
x_refsource_MISC
- github.com/espressif/esp-idf/commit/b0959b5ab1dc60398a916c80f14b1816780c801e
x_refsource_MISC
- github.com/espressif/esp-idf/commit/c53d05ae526607ca5eae9ffedaf57775eec33a4f
x_refsource_MISC
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.