CVE-2026-5244

Katalog CVE

CVSS 9.8 · Critical EPSS 0,76%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada cesanta mongoose. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

2 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-122: Heap-based Buffer Overflow

EPSS (30 hari)

0,76% peluang dieksploitasi; lebih tinggi dari 54,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/cesanta/mongoose/commit/0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1 patch
• https://vuldb.com/submit/770063 exploit · advisory pihak ketiga · vdb entry
• https://vuldb.com/vuln/354825 advisory pihak ketiga · vdb entry
• https://github.com/cesanta/mongoose/ product
• https://github.com/cesanta/mongoose/releases/tag/7.21 product · release notes
• https://vuldb.com/vuln/354825/cti permissions required · vdb entry