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CVE-2025-65502

Good to know:

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Date: November 23, 2025

Null pointer dereference in add_ca_certs() in Cesanta Mongoose before 7.2 allows remote attackers to cause a denial of service via TLS initialization where SSL_CTX_get_cert_store() returns NULL.

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2025-65502
https://github.com/cesanta/mongoose/pull/3307
https://github.com/cesanta/mongoose/issues/3306
https://www.mend.io/vulnerability-database/CVE-2025-65502

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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Upgrade Version

Upgrade to version https://github.com/cesanta/mongoose.git - 7.20

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

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