How severe is CVE-2010-4697?

CVE-2010-4697 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2010-4697 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4697?

CVE-2010-4697 primarily affects Php. In total, 103 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4697?

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

When was CVE-2010-4697 published?

CVE-2010-4697 was published on 2011-01-18 and last updated on 2026-06-16.

CVE-2010-4697

CVE-2010-4697 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 6.8. 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Php
Published: 2011-01-18
Last modified: 2026-06-16

Description

Use-after-free vulnerability in the Zend engine in PHP before 5.2.15 and 5.3.x before 5.3.4 might allow context-dependent attackers to cause a denial of service (heap memory corruption) or have unspecified other impact via vectors related to use of __set, __get, __isset, and __unset methods on objects accessed by a reference.

Frequently asked questions

What is CVE-2010-4697?: Use-after-free vulnerability in the Zend engine in PHP before 5.2.15 and 5.3.x before 5.3.4 might allow context-dependent attackers to cause a denial of service (heap memory corruption) or have unspecified other impact via vectors related to use of __set, __get, __isset, and __unset methods on objects accessed by a reference.
How severe is CVE-2010-4697?: CVE-2010-4697 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2010-4697 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4697?: CVE-2010-4697 primarily affects Php. In total, 103 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4697?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4697 published?: CVE-2010-4697 was published on 2011-01-18 and last updated on 2026-06-16.

References

Affected products (103)

cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
cpe:2.3:a:php:php:1.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:2.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:2.0b10:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.7:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.8:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.9:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.10:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.11:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.12:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.13:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.14:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.15:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.16:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.17:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.18:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0:beta_4_patch1:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0:beta1:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0:beta2:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0:beta3:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0:beta4:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*

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Browse all CWE-399 (Resource Management Errors) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

221.161.235.168 (ipv4-addr)
103.20.122.54 (ipv4-addr)
82.199.197.245 (ipv4-addr)
58.221.244.34 (ipv4-addr)
222.99.52.202 (ipv4-addr)
220.88.220.59 (ipv4-addr)
211.253.10.61 (ipv4-addr)
121.164.135.251 (ipv4-addr)