Is CVE-2025-34073 actively exploited?

No active exploitation of CVE-2025-34073 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-34073 be exploited remotely?

Yes. CVE-2025-34073 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-34073?

CVE-2025-34073 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2025-34073

CRITICAL

CVE-2025-34073

CWE-78Published: July 2, 2025· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

An unauthenticated command injection vulnerability exists in stamparm/maltrail (Maltrail) versions <=0.54. A remote attacker can execute arbitrary operating system commands via the username parameter in a POST request to the /login endpoint. This occurs due to unsafe handling of user-supplied input passed to subprocess.check_output() in core/http.py, allowing injection of shell metacharacters. Exploitation does not require authentication and commands are executed with the privileges of the Maltrail process.

NVD Source

Technical Analysis

CVE-2025-34073 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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