# CVE-2025-68473: ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling

> An out-of-bounds write in the ESP-IDF Bluetooth SDP handler allows attackers to potentially execute code or crash the device via crafted Bluetooth services.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Dec 2025
- **Updated:** 29 Dec 2025
- **Also known as:** GHSA-hmjj-rjvv-w8pq

## What is CVE-2025-68473?

CVE-2025-68473 is a memory corruption vulnerability in espressif esp-idf, published on 26 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2025-68473?

It affects 1 product.


Products: Espressif Esp-Idf.

## How do I fix CVE-2025-68473?

No fix has been published for CVE-2025-68473 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-68473 being exploited?

There is no known exploitation of CVE-2025-68473 in the wild and no public exploit code.

## Other vulnerabilities in espressif esp-idf

- [CVE-2026-45328](https://insights.sbomify.com/CVE-2026-45328/): ESF-IDF: Out-of-Bounds Write in ESP-TEE Secure Service Wrappers (critical 9.3)
- [CVE-2024-53406](https://insights.sbomify.com/CVE-2024-53406/): Auth bypass in n/a (high 8.8)
- [CVE-2021-28139](https://insights.sbomify.com/CVE-2021-28139/): Memory corruption in n/a (high 8.8)
- [CVE-2024-33453](https://insights.sbomify.com/CVE-2024-33453/): Information disclosure in n/a (high 8.1)
- [CVE-2019-12587](https://insights.sbomify.com/CVE-2019-12587/): Weak cryptography in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-68473 and fix it if it is affected.

What it is: CVE-2025-68473 is a memory corruption vulnerability in espressif esp-idf, published on 26 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-68473 in the wild and no public exploit code.

Affected product: espressif esp-idf. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-68473/ (Markdown: https://insights.sbomify.com/CVE-2025-68473/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-68473
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-68473
- OSV: https://osv.dev/vulnerability/CVE-2025-68473

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-68473/
Summaries are generated and may contain mistakes; the official description above is the record.