CVE-2025-55297

Severity CVSS v4.0:

MEDIUM

Type:

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Publication date:

21/08/2025

Last modified:

22/01/2026

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.

Impact

Vector 4.0

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 CVSS v4.0 Severity and Metrics:

Base Score: 5.20 MEDIUM
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

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None
Exploit Maturity (E): Unreported

Base Score 4.0

5.20

Severity 4.0

MEDIUM

Vector 3.x

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:espressif:esp-idf::::::::		5.0.9 (excluding)
cpe:2.3:a:espressif:esp-idf::::::::	5.1 (including)	5.1.6 (excluding)
cpe:2.3:a:espressif:esp-idf::::::::	5.2 (including)	5.3.3 (excluding)
cpe:2.3:a:espressif:esp-idf::::::::	5.4 (including)	5.4.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-55297

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools