CVE-2021-43042

Katalog CVE

CVSS 9.8 · Critical EPSS 3,0%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada kaseya unitrends backup. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. A buffer overflow existed in the vaultServer component. This was exploitable by a remote unauthenticated attacker.

Rincian

Terbit di NVD

6 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

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-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

3,0% peluang dieksploitasi; lebih tinggi dari 86,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961 advisory vendor
• https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1 exploit · advisory pihak ketiga
• https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2 exploit · advisory pihak ketiga