How severe is CVE-2011-3189?

CVE-2011-3189 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-3189 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-2011-3189?

CVE-2011-3189 affects Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-3189?

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

When was CVE-2011-3189 published?

CVE-2011-3189 was published on 2011-08-25 and last updated on 2026-06-16.

CVE-2011-3189

CVE-2011-3189 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 4.3. 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-310.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Php
Published: 2011-08-25
Last modified: 2026-06-16

Description

The crypt function in PHP 5.3.7, when the MD5 hash type is used, returns the value of the salt argument instead of the hashed string, which might allow remote attackers to bypass authentication via an arbitrary password, a different vulnerability than CVE-2011-2483.

Frequently asked questions

What is CVE-2011-3189?: The crypt function in PHP 5.3.7, when the MD5 hash type is used, returns the value of the salt argument instead of the hashed string, which might allow remote attackers to bypass authentication via an arbitrary password, a different vulnerability than CVE-2011-2483.
How severe is CVE-2011-3189?: CVE-2011-3189 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-3189 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-2011-3189?: CVE-2011-3189 affects Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-3189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3189 published?: CVE-2011-3189 was published on 2011-08-25 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:php:php:5.3.7:*:*:*:*:*:*:*

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