CVE-2012-0262
CriticalExploitedPublic exploitop5config/welcome in system-op5config before 2.0.3 in op5 Monitor and op5 Appliance before 5.5.3 allows remote attackers to execute arbitrary commands via shell metacharacters in the password parameter.
Published Dec 31, 2013 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2012-0262 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Monitor (Op5), System-Op5config (Op5).
- It is exploited in the wild, listed in Industry KEV feed since Dec 1, 2020. Public exploit code is available.
- EPSS estimates a 73% probability of exploitation in the next 30 days.
- Fixed versions are available, including Monitor 5.5.1, System-Op5config 2.0.2.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
73%
Higher than 99.4% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
op5config/welcome in system-op5config before 2.0.3 in op5 Monitor and op5 Appliance before 5.5.3 allows remote attackers to execute arbitrary commands via shell metacharacters in the password parameter.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Dec 1, 2020 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
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-Op5configOp5 | See advisory | 2.0.2 |
Patched Releases
Monitor
5.5.1
System-Op5config
2.0.2
Timeline
Publicly disclosed
Dec 31, 2013
Added to Industry KEV feed
Dec 1, 2020
Last updated
Apr 28, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisory47417
- exploitMSF op5_welcome.rb
- exploitExploitDB-41687
- exploitVulnCheck exploitation report
- exploithttp://www.ekelow.se/file_uploads/Advisories/ekelow-aid-2012-01.pdf
FAQ
Common Questions.
op5config/welcome in system-op5config before 2.0.3 in op5 Monitor and op5 Appliance before 5.5.3 allows remote attackers to execute arbitrary commands via shell metacharacters in the password parameter.
Affected: Monitor (Op5) versions 5.3.5, 5.4.0, 5.4.2, 5.5.0; System-Op5config (Op5). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Dec 1, 2020.
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-Op5config 2.0.2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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