CVE-2025-34121

Idera Up.Time ≤ 7.2 post2file.php Arbitrary File Upload RCE

9.3 CriticalPublic exploit

An unauthenticated arbitrary file upload vulnerability exists in Idera Up.Time Monitoring Station versions up to and including 7.2. The wizards/post2file.php script accepts arbitrary POST parameters, allowing attackers to upload crafted PHP files to the webroot. Successful exploitation results in remote code execution as the web server user. NOTE: The bypass for this vulnerability is tracked as CVE-2015-9263.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

2.81%Up 2.7 points since Jul 17, 2025

What each source reports

CVE List Score used 9.3

Idera Up.Time ≤ 7.2 post2file.php Arbitrary File Upload RCE

Record: CVE-2025-34121
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness: CWE-434, CWE-306
Updated: 2026-11-02

EUVDEUVD-2025-21749 9.3

Record: EUVD-2025-21749
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-7x48-359h-28rm 9.3

An unauthenticated arbitrary file upload vulnerability exists in Idera Up.Time Monitoring Station...

Record: GHSA-7x48-359h-28rm
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
Weakness: CWE-306
Updated: 2026-11-02

NVD 9.3

Record: CVE-2025-34121
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
Weakness: CWE-306, CWE-434
Updated: 2026-11-02

Affected products

idera up.time monitoring station

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Metasploit	Idera Up.Time Monitoring Station 7.0 post2file.php Arbitrary File Upload	2013-11-19

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, Metasploit, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-34121 is a critical vulnerability (CVSS 9.3) in Idera Up.time Monitoring Station, published July 16, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.81%, the 86th percentile. No source names a fixed version.