Is CVE-2011-4885 actively exploited?

CVE-2011-4885 has no public evidence of in-the-wild exploitation as of 2025-04-11.

What is the CVSS score for CVE-2011-4885?

CVE-2011-4885 has a CVSS score of 5 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P.

How do I patch CVE-2011-4885?

Patch guidance is available from php security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2011-4885.

Which products are affected by CVE-2011-4885?

45 products: php php, php php, php php, php php, php php, and 40 more.

CVE-2011-4885 - remediation guidance & executive summary

Description

PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: none
Integrity: none
Availability: partial
Weaknesses: CWE-20 · Improper Input Validation

Metadata

Primary Vendor: PHP
Published: 12/30/2011
Last Modified: 4/11/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

php : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : phpphp : php

Remediation Guidance

Executive Summary

View on NIST NVD