How severe is CVE-2012-0781?

CVE-2012-0781 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-0781 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0781?

CVE-2012-0781 affects Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-0781?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-0781 published?

CVE-2012-0781 was published on 2012-01-18 and last updated on 2026-06-16.

CVE-2012-0781

CVE-2012-0781 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 11% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Php
Published: 2012-01-18
Last modified: 2026-06-16

Description

The tidy_diagnose function in PHP 5.3.8 might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted input to an application that attempts to perform Tidy::diagnose operations on invalid objects, a different vulnerability than CVE-2011-4153.

Frequently asked questions

What is CVE-2012-0781?: The tidy_diagnose function in PHP 5.3.8 might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted input to an application that attempts to perform Tidy::diagnose operations on invalid objects, a different vulnerability than CVE-2011-4153.
How severe is CVE-2012-0781?: CVE-2012-0781 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-0781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0781?: CVE-2012-0781 affects Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-0781?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0781 published?: CVE-2012-0781 was published on 2012-01-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:php:php:5.3.8:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

179.125.175.74 (ipv4-addr)