CVE-2025-68473: ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling
Noroxi assessment
Priority: Monitor (action score 0/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.40% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- No fixed version is recorded, but the references include a patch (commit or PR) link.
Low priority for now. See the fix and affected versions sections below.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, in the ESP-IDF Bluetooth host stack (BlueDroid), the function bta_dm_sdp_result() used a fixed-size array uuid_list[32][MAX_UUID_SIZE] to store discovered service UUIDs during the SDP (Service Discovery Protocol) process. On modern Bluetooth devices, it is possible for the number of available services to exceed this fixed limit (32). In such cases, if more than 32 services are discovered, subsequent writes to uuid_list could exceed the bounds of the array, resulting in a potential out-of-bounds write condition.
- Published
- Dec 27, 2025
- Updated
- Oct 7, 2026
- EPSS
- 0.4% · 35th percentile
- CWE
- CWE-787
Report tools
Action score
0
Low priority for now.
- CVSS
- 0 / 40 · 0.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · GitHub_M
- 0.0
- NVD has not scored this yet; the score shown is the CNA’s.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| espressif | esp-idf | cpe:2.3:a:espressif:esp-idf |
Versions reported by the vendor
Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.
espressif esp-idf
- >= 5.5-beta1, <= 5.5.1, >= 5.4-beta1, <= 5.4.3, >= 5.3-beta1, <= 5.3.4, >= 5.2-beta1, <= 5.2.6, <= 5.1.6affected
Affected versions · NVD (5)
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- espressif esp-idf5.1.6
- espressif esp-idf5.2.6
- espressif esp-idf5.3.4
- espressif esp-idf5.4.3
- espressif esp-idf5.5.1
Same product
espressif: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-113780ESF-IDF: Unvalidated Stack Pointer at the ESP-TEE Privilege-Switch Boundary37Monitor
- CVE-2026-45328ESF-IDF: Out-of-Bounds Write in ESP-TEE Secure Service Wrappers35Monitor
- CVE-2024-53406Espressif Esp idf v5.3.0 is vulnerable to Insecure Permissions resulting in Authentication bypass.35Monitor
Published before and after this one in the same product
- ← EarlierCVE-2025-65092Nov 21, 2025 · ESP32-P4 JPEG Decoder Header Parsing Vulnerability27Monitor
- ← EarlierCVE-2025-66409Dec 2, 2025 · ESF-IDF has an Out-of-Bounds Read in ESP32 Bluetooth AVRCP Command Handling10Monitor
- Later →CVE-2025-68474Dec 27, 2025 · ESF-IDF Has Out-of-Bounds Write in ESP32 Bluetooth AVRCP Vendor Command Handling24Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-113780312 days apartESF-IDF: Unvalidated Stack Pointer at the ESP-TEE Privilege-Switch Boundary37Monitor
- CVE-2025-684740 days apartESF-IDF Has Out-of-Bounds Write in ESP32 Bluetooth AVRCP Vendor Command Handling24Monitor
Not on record for this CVE: EPSS history · researcher credit · public bounty program.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- Integrity
- Availability
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- X
Weakness class (CWE)
CWE-787 · Out-of-bounds WriteCVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log (0)
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Show all references (7 more)Show less
- github.com/espressif/esp-idf/commit/4d928f2265c394d2abc85024228e920a5b26bcab
- github.com/espressif/esp-idf/commit/5b3185168dae83d42aa0852689422fffd931f16c
- github.com/espressif/esp-idf/commit/6453f57a954458ad8ffd6e4bf2d9e76b73fac0f1
- github.com/espressif/esp-idf/commit/6ca6f422dafaffcb88fa56cc458ce92d96be3b2e
- github.com/espressif/esp-idf/commit/9889edd799cf369e082df9d01adba961d64693ed
- github.com/espressif/esp-idf/commit/ecb86d353640cf1375bf97db32e702ba59c551b6
- github.com/espressif/esp-idf/security/advisories/GHSA-hmjj-rjvv-w8pq
Vendor advisories and official records. Exploit/PoC links are deliberately left out.