CVE-2025-34056

An OS command injection vulnerability exists in AVTECH IP camera, DVR, and NVR devices via the PwdGrp.cgi endpoint, which handles user and group management operations. Authenticated users can supply input through the pwd or grp parameters, which are directly embedded into system commands without proper sanitation. This allows for the execution of arbitrary shell commands with root privileges.

CVSS v4.0

9.4 CRITICALCVSS:4.0/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

EPSS

1.80% chance of exploitation in the next 30 days, 77th percentile

Published

2025-07-01

Updated

2026-04-07

Proof-of-concept exploits (2)

• https://web.archive.org/web/20161029201749/https://github.com/ebux/AVTECH
• https://www.exploit-db.com/exploits/40500

References

• CVE Record
• NVD entry

Related

• CVE-2025-34055
• CVE-2025-34057
• CVE-2025-34054
• CVE-2025-34058
• CVE-2025-34053
• CVE-2025-34059