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CVE-2025-34073

54
FAUCET Score

CVE-2025-34073 is a critical unauthenticated command injection vulnerability affecting stamparm/maltrail (Maltrail) versions <=0.54. A remote attacker can execute arbitrary operating system commands with the privileges of the Maltrail process by injecting shell metacharacters into the username parameter of a POST request to the /login endpoint. This vulnerability has a CVSS score of 10.0 (CRITICAL) due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. Exploit code is publicly available via Metasploit modules and Nuclei templates, and it has garnered significant community discussion, indicating a high potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
StamparmMaltrail
>= 0, <= 0.54CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

10.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
3.88%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Metasploit: Maltrail Unauthenticated Command Injection · Jul 31, 2023
Nuclei: CVE-2025-34073 · Aug 4, 2025
This CVE's current EPSS score of 0.0388 is in the 82nd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / stamparm/maltrail
github.com / stamparm/maltrail/issues/19146
huntr.com / bounties/be3c5204-fbd9-448d-b97c-96a8d2941e87
raw.githubusercontent.com / rapid7/metasploit-framework/master/modules/exploits/unix/http/maltrail_rce.rb
vulncheck.com / advisories/stamparm-maltrail-rce