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CVE-2025-55297

ESF-IDF BluFi Example Memory Overflow Vulnerability

Published: Aug 21, 2025Updated: Jan 22, 2026 Sources: CVE List NVDCWE-120
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.3%
Top 76.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-120CWE-131

Affected Products

esp-idfespressif
LibraryLibrary
OSS Libraries / generic-library
espressifcommercialCNOperating Systemsaka esp-idf, arduino-esp32, esp8266 nonos sdk, espressif

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/espressif/esp-idf/security/advisories/GHSA-9w88-r2vm-qfc4
github.com
https://github.com/espressif/esp-idf/commit/12b7a9e6d78012ab9184b7ccdb5524364bf7e345
github.com
https://github.com/espressif/esp-idf/commit/3fc6c93936077cb1659e1f0e0268e62cf6423e9d
github.com
and 10 more references View all →

Timeline

Published
Aug 21, 2025
Last Updated
Jan 22, 2026

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