CVE-2012-0261
CriticalPublic exploitlicense.php in system-portal before 1.6.2 in op5 Monitor and op5 Appliance before 5.5.3 allows remote attackers to execute arbitrary commands via shell metacharacters in the timestamp parameter for an install action.
Published Dec 31, 2013 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2012-0261 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Monitor (Op5), System-Portal (Op5).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 74% probability of exploitation in the next 30 days.
- Fixed versions are available, including Monitor 5.5.1, System-Portal 1.6.1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
74%
Higher than 99.4% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2012-0261 brief as a PDF
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Description
license.php in system-portal before 1.6.2 in op5 Monitor and op5 Appliance before 5.5.3 allows remote attackers to execute arbitrary commands via shell metacharacters in the timestamp parameter for an install action.
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| MonitorOp5 | 5.3.5, 5.4.0, 5.4.2, 5.5.0 | 5.5.1 |
| System-PortalOp5 | See advisory | 1.6.1 |
Patched Releases
Monitor
5.5.1
System-Portal
1.6.1
Timeline
Publicly disclosed
Dec 31, 2013
Last updated
Apr 28, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisory47417
- exploitMSF op5_license.rb
- exploitExploitDB-41686
- otherhttps://bugs.op5.com/view.php?id=5094
- other20120107 OP5 Monitor - Multiple Vulnerabilities
FAQ
Common Questions.
license.php in system-portal before 1.6.2 in op5 Monitor and op5 Appliance before 5.5.3 allows remote attackers to execute arbitrary commands via shell metacharacters in the timestamp parameter for an install action.
Affected: Monitor (Op5) versions 5.3.5, 5.4.0, 5.4.2, 5.5.0; System-Portal (Op5). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Monitor 5.5.1, System-Portal 1.6.1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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