How severe is CVE-2012-0877?

CVE-2012-0877 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2012-0877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0877?

CVE-2012-0877 primarily affects Redhat Enterprise Virtualization Hypervisor. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0877?

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

When was CVE-2012-0877 published?

CVE-2012-0877 was published on 2019-11-22 and last updated on 2026-06-16.

CVE-2012-0877

CVE-2012-0877 is a high-severity vulnerability in Redhat Enterprise Virtualization Hypervisor with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Redhat Enterprise Virtualization Hypervisor
Published: 2019-11-22
Last modified: 2026-06-16

Description

PyXML: Hash table collisions CPU usage Denial of Service

Frequently asked questions

What is CVE-2012-0877?: PyXML: Hash table collisions CPU usage Denial of Service
How severe is CVE-2012-0877?: CVE-2012-0877 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2012-0877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0877?: CVE-2012-0877 primarily affects Redhat Enterprise Virtualization Hypervisor. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-0877 published?: CVE-2012-0877 was published on 2019-11-22 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:python:pyxml:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:enterprise_virtualization_hypervisor:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

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