Is CVE-2025-65502 actively exploited?

CVE-2025-65502 has no public evidence of in-the-wild exploitation as of 2025-12-12.

What is the CVSS score for CVE-2025-65502?

CVE-2025-65502 has a CVSS score of 4.3 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

How do I patch CVE-2025-65502?

Patch guidance is available from cesanta security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-65502.

CVE-2025-65502 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: low
Weaknesses: CWE-476 · NULL Pointer Dereference

Metadata

Primary Vendor: CESANTA
Published: 11/24/2025
Last Modified: 12/12/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

cesanta : mongoose

Remediation Guidance

Executive Summary

Cite this page

CVE-2025-65502. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-65502

View on NIST NVD

CVE-2025-65502 vulnerability