Vulnerability · Published Aug 21, 2025 · Assigned by GitHub_M

CVE-2025-55297ESF-IDF BluFi Example Memory Overflow Vulnerability

Medium 5.2

In plain English

A medium-severity buffer overflow in esp-idf from espressif. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 4.0)5.2Medium

Exploit odds (30 days)0.4%top 70.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
espressif	esp-idf	< 5.0.9>= 5.1-beta1, < 5.1.6>= 5.2-beta1, < 5.3.3>= 5.4-beta1, < 5.4.1

Weakness: CWE-120, CWE-131 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

References

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