CVE-2026-44254

Katalog CVE

CVSS 5.3 · Medium EPSS 0,50%

Kerentanan Incorrect Calculation of Buffer Size pada wazuh. Skor CVSS 3.1 5.3 (Medium) menurut github.com.

Deskripsi (NVD)

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage() in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG(), and src/os_crypto/shared/msgs.c decompresses up to OS_MAXSTR bytes at that offset. For an encrypted agent message on TCP port 1514 that expands to 65,536 bytes, os_zlib_uncompress() writes a terminating null byte beyond the end of the destination buffer. The resulting stack out-of-bounds write in the root-level remoted daemon can crash message processing and disrupt agent communications. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

Rincian

Terbit di NVD

19 Agustus 2026

Terakhir diubah

18 September 2026

Status NVD

Analyzed

CVSS 3.1

5.3 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-131: Incorrect Calculation of Buffer Size
CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 40,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/wazuh/wazuh/security/advisories/GHSA-9wm4-fp6c-hqgq exploit · advisory vendor
• https://github.com/wazuh/wazuh/commit/96772487fbdecd43cc83e284ee7aeb45e3cfcd96 patch
• https://github.com/wazuh/wazuh/pull/35773 issue tracking · patch
• https://github.com/wazuh/wazuh/releases/tag/v4.14.6 release notes
• https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2 release notes