Espressif Esp idf v5.3.0 is vulnerable to Insecure Permissions resulting in Authentication bypass.

published 2025-03-13 last yr. modified 2026-06-17 4mo ago also EUVD-2024-54052

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

Espressif Esp idf v5.3.0 is vulnerable to Insecure Permissions resulting in Authentication bypass. In the reconnection phase, the device reuses the session key from a previous connection session, creating an opportunity for attackers to execute security bypass attacks.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-03-19)

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

github.com https://github.com/yangting111/BLE_TEST/blob/main/result/PoC/Esp/sk_reuse.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

Weakness

CWE-639 Authorization Bypass Through User-Controlled Key

References

github.com /yangting111/BLE_TEST/blob/main/result/PoC/Esp/sk_reuse.md
exploit
github.com /espressif/esp-idf
product

Sources

CVE List CVE-2024-53406
NVD CVE-2024-53406

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