How severe is CVE-2012-0264?

CVE-2012-0264 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2012-0264 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0264?

CVE-2012-0264 primarily affects Op5 Monitor. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0264?

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-2012-0264 published?

CVE-2012-0264 was published on 2013-12-31 and last updated on 2026-06-16.

CVE-2012-0264

CVE-2012-0264 is a critical-severity vulnerability in Op5 Monitor with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Op5 Monitor
Published: 2013-12-31
Last modified: 2026-06-16

Description

op5 Monitor and op5 Appliance before 5.5.0 do not properly manage session cookies, which allows remote attackers to have an unspecified impact via unspecified vectors.

Frequently asked questions

What is CVE-2012-0264?: op5 Monitor and op5 Appliance before 5.5.0 do not properly manage session cookies, which allows remote attackers to have an unspecified impact via unspecified vectors.
How severe is CVE-2012-0264?: CVE-2012-0264 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2012-0264 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0264?: CVE-2012-0264 primarily affects Op5 Monitor. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0264?: 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-2012-0264 published?: CVE-2012-0264 was published on 2013-12-31 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:op5:monitor:*:*:*:*:*:*:*:*
cpe:2.3:a:op5:monitor:5.3.5:*:*:*:*:*:*:*
cpe:2.3:a:op5:monitor:5.4.0:*:*:*:*:*:*:*

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