CVE-2026-45798

Katalog CVE

CVSS 7.5 · High EPSS 0,92%

Kerentanan Stack-based Buffer Overflow pada wazuh. Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.5.0 until 4.14.6 and 5.0.0-beta2, compare_wazuh_versions() in src/shared/version_op.c copies the attacker-controlled enrollment V: field into a 10-byte stack buffer with strncpy() but does not explicitly terminate the buffer. The function is reachable before authentication through wazuh-authd on TCP port 1515 when anonymous TLS enrollment is enabled. A version string of at least nine non-null bytes can cause strchr() and strtok() to read beyond ver2 and can make strtok() write a null byte into adjacent stack memory, allowing a remote denial of service. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

Rincian

Terbit di NVD

19 Agustus 2026

Terakhir diubah

15 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-121: Stack-based Buffer Overflow
CWE-170: Improper Null Termination

EPSS (30 hari)

0,92% peluang dieksploitasi; lebih tinggi dari 59,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/wazuh/wazuh/security/advisories/GHSA-4fvp-jfc3-qr6r exploit · advisory vendor
• https://github.com/wazuh/wazuh/commit/b6aac379982d6144b8da38450cbea6c8dc15be44 patch
• https://github.com/wazuh/wazuh/pull/36059 issue tracking · patch
• https://github.com/wazuh/wazuh/releases/tag/v4.14.6 patch · release notes
• https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2 patch · release notes