PT-2026-47752 · Veeam · Veeam Backup & Replication

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-44963

Positive Technologies (AI Summary)

CVSS v4.0

9.4

Critical

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Veeam Backup & Replication versions prior to 12.3.2.4854

Description An authenticated domain user can achieve remote code execution (RCE) on the Backup Server. This issue specifically impacts backup servers that are joined to a domain.

Recommendations Update to version 12.3.2.4854.

Fix

RCE

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-44963

Affected Products

Veeam Backup & Replication

References · 12

• https://nvd.nist.gov/vuln/detail/CVE-2026-44963 · Security Note
• https://twitter.com/GoCocoaAI/status/2064364405232419262 · Twitter Post
• https://twitter.com/TheHackersNews/status/2064391579616542867 · Twitter Post
• https://reddit.com/r/SecOpsDaily/comments/1u1ejyb/veeam_backup_replication_rce_flaw_lets_domain · Reddit Post
• https://t.me/thehackernews/9194 · Telegram Post
• https://veeam.com/kb4869 · Note
• https://twitter.com/threatcluster/status/2064339474130096567 · Twitter Post
• https://reddit.com/r/pwnhub/comments/1u1lz9r/critical_rce_flaw_in_veeam_backup_software_puts · Reddit Post
• https://twitter.com/f1tym1/status/2064394405310509185 · Twitter Post
• https://reddit.com/r/Veeam/comments/1u12rdo/important_veeam_product_update · Reddit Post
• https://twitter.com/GoCocoaAI/status/2064364401835085922 · Twitter Post
• https://twitter.com/UndercodeNews/status/2064362110469968270 · Twitter Post