CVE-2026-5244

216.73.217.22

· Published 02/04/2026 08:16 · Modified 03/04/2026 16:10

Labels: CVE-2026-5244 2026-04-02 CVE-2026-5244 CWE-119 [email protected]

Essential information

Published: 02/04/2026 08:16
Modified: 03/04/2026 16:10
Author: —
Creator: —
CVSS: 6.9 MEDIUM (v3) 6.9 MEDIUM (v4.0)
CISA KEV: No
CWE: —
CVSS vector: —

CVSS metrics

Description

A vulnerability has been found in Cesanta Mongoose up to 7.20. This affects the function mg_tls_recv_cert of the file mongoose.c of the component TLS 1.3 Handler. Such manipulation of the argument pubkey leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 7.21 mitigates this issue. The name of the patch is 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

NVD status

Status: Awaiting Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
Source: [email protected]
NVD: View on NVD

Affected products (CPE)

Product	CPE
cesanta / mongoose	`cpe:2.3:a:cesanta:mongoose:<7.20:::::::*`
cesanta / mongoose	`cpe:2.3:a:cesanta:mongoose:7.21:::::::*`