How severe is CVE-2012-0261?

CVE-2012-0261 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2012-0261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0261?

CVE-2012-0261 primarily affects Op5 Monitor. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0261?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-0261 published?

CVE-2012-0261 was published on 2013-12-31 and last updated on 2026-06-16.

CVE-2012-0261

CVE-2012-0261 is a critical-severity vulnerability in Op5 Monitor with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 74% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 74% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Op5 Monitor
Published: 2013-12-31
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2012-0261?: 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.
How severe is CVE-2012-0261?: CVE-2012-0261 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2012-0261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0261?: CVE-2012-0261 primarily affects Op5 Monitor. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0261?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-0261 published?: CVE-2012-0261 was published on 2013-12-31 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:op5:monitor:*:*:*:*:*:*:*:*
cpe:2.3:a:op5:monitor:5.3.5:*:*:*:*:*:*:*
cpe:2.3:a:op5:monitor:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:op5:monitor:5.4.2:*:*:*:*:*:*:*
cpe:2.3:a:op5:monitor:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:op5:system-portal:*:*:*:*:*:*:*:*

More vulnerabilities in Op5 Monitor

CVE-2012-0264 — Critical (CVSS 10.0): op5 Monitor and op5 Appliance before 5.5.0 do not properly manage session cookies, which allows remote attackers to…
CVE-2012-0262 — Critical (CVSS 10.0): op5config/welcome in system-op5config before 2.0.3 in op5 Monitor and op5 Appliance before 5.5.3 allows remote…
CVE-2008-5028 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in cmd.cgi in (1) Nagios 3.0.5 and (2) op5 Monitor before 4.0.1 allows…
CVE-2008-5027 — Medium (CVSS 6.5): The Nagios process in (1) Nagios before 3.0.5 and (2) op5 Monitor before 4.0.1 allows remote authenticated users to…
CVE-2021-40272 — Medium (CVSS 6.1): OP5 Monitor 8.3.1, 8.3.2, and OP5 8.3.3 are vulnerable to Cross Site Scripting (XSS).
CVE-2013-6141 — Medium (CVSS 5.0): Unspecified vulnerability in op5 Monitor before 6.1.3 allows attackers to read arbitrary files via unknown vectors…

All CVEs affecting Op5 Monitor →

Other CWE-94 (Code Injection) vulnerabilities

CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

Browse all CWE-94 (Code Injection) vulnerabilities →