Is CVE-2010-1861 being actively exploited?

CVE-2010-1861 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2010-1861?

CVE-2010-1861 has a CVSS 2.0 base score of 6.4 (MEDIUM).

CVE-2010-1861

MEDIUM · CVSS 6.4EPSS 1.0%EU EUVD

The sysvshm extension for PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 allows context-dependent attackers to write to arbitrary memory addresses by using an object's __sleep function to interrupt an internal call to the shm_put_var function, which triggers access of a freed resource.

Key facts

CVSS score: 6.4 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:N
Weakness (CWE): CWE-399
EPSS score: 1.0% (63th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2010-1881)
Published: May 7, 2010
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2010-1881 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php
php / php

References

http://php-security.org/2010/05/05/mops-2010-009-php-shm_put_var-already-freed-resource-access-vulnerability/index.html(Exploit)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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