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…

PriorityP345high8.8CVSS 3.1

AVAACLPRNUINSUCHIHAH

EPSS

0.32%

23.8th percentile

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

7 ranges

Vendor	Product	Version range	Fixed in
espressif	esp-idf	< 5.0.9	5.0.9
espressif	esp-idf	—	—
espressif	esp-idf	—	—
espressif	esp-idf	—	—
espressif	esp-idf	>= 5.1 < 5.1.6	5.1.6
espressif	esp-idf	>= 5.2 < 5.3.3	5.3.3
espressif	esp-idf	>= 5.4 < 5.4.1	5.4.1

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv4.05.2MEDIUMCVSS: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/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

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.