CVE-2025-55297

HIGH
Published Aug 21, 2025 Modified Jan 22, 2026 CWE-120 CWE-131

Description

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. The BluFi example bundled in ESP-IDF was vulnerable to memory overflows in two areas: Wi-Fi credential handling and Diffie–Hellman key exchange. This vulnerability is fixed in 5.4.1, 5.3.3, 5.1.6, and 5.0.9.

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CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120
CWE-131 CWE-131

Affected Products

Vendor Product
espressif esp-idf
espressif esp-idf
espressif esp-idf
espressif esp-idf

References

Advisories & Patches

https://github.com/espressif/esp-idf/commit/12b7a9e6d78012ab9184b7ccdb5524364bf7e345 https://github.com/espressif/esp-idf/commit/3fc6c93936077cb1659e1f0e0268e62cf6423e9d https://github.com/espressif/esp-idf/commit/5f93ec3b11b6115475c34de57093b3672d594e8f https://github.com/espressif/esp-idf/commit/9cb7206d4ae8fd8f4296cd57d6c78a1656f42efa https://github.com/espressif/esp-idf/commit/abc18e93eb3500dbec74c3e589671ef82c8b3919 https://github.com/espressif/esp-idf/commit/b1657d9dd4d0e48ed25e02cb8fe8413f479a2a84 https://github.com/espressif/esp-idf/commit/bf50c0c197af30990026c8f8286298d2aa5a3c99 https://github.com/espressif/esp-idf/commit/cb6929a2e6f2ff130b742332dc15eb23006c7cc9 https://github.com/espressif/esp-idf/commit/cc00e9f2fc4f7e8fbaff27851b4a8b45fa483501 https://github.com/espressif/esp-idf/commit/e65cf7ea2a2be52219ec9d4efc44aed5e490e91c https://github.com/espressif/esp-idf/commit/f40aa9c587a8e570dfde2e6330382dcd170d5a5d https://github.com/espressif/esp-idf/commit/f77da0d5b5382635c99e6708551b73802ad1213d https://github.com/espressif/esp-idf/security/advisories/GHSA-9w88-r2vm-qfc4

Frequently Asked Questions

What is CVE-2025-55297? +
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. The BluFi example bundled in ESP-IDF was vulnerable to memory overflows in two areas: Wi-Fi credential handling and Diffie–Hellman key exchange. This vulnerability is fixed in 5.4.1, 5.3.3, 5.1.6, and 5.0.9. It has a CVSS v3.1 base score of 8.8 (HIGH).
How severe is CVE-2025-55297? +
CVE-2025-55297 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-55297? +
CVE-2025-55297 affects products from espressif, specifically: esp-idf. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-55297? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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