Is CVE-2010-2191 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 2%.

What products does CVE-2010-2191 affect?

Tracked products affected include PHP. Check the version you run to see whether it is affected.

How do I fix CVE-2010-2191?

Apply the vendor fix in your normal patch cycle. Upgrade affected products to a fixed version.

CVE-2010-2191

Q: What is CVE-2010-2191?

CVE-2010-2191 is a medium-severity software vulnerability (Memory corruption) with a CVSS score of 6.4. The (1) parse_str, (2) preg_match, (3) unpack, and (4) pack functions; the (5) ZEND_FETCH_RW, (6) ZEND_CONCAT, and (7) ZEND_ASSIGN_CONCAT opcodes; and the (8) ArrayObject::uasort method in PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 allow

MEDIUM severity · CVSS 6.4 · Memory corruption

6.4CVSS MEDIUM

Summary

The (1) parse_str, (2) preg_match, (3) unpack, and (4) pack functions; the (5) ZEND_FETCH_RW, (6) ZEND_CONCAT, and (7) ZEND_ASSIGN_CONCAT opcodes; and the (8) ArrayObject::uasort method in PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 allow context-dependent attackers to obtain sensitive information (memory contents) or trigger memory corruption by causing a userspace interruption of an internal function or handler. NOTE: vectors 2 through 4 are related to the call time pass by reference feature.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges required—

User interaction—

Confidentiality impact—

Integrity impact—

Availability impactNone

Exploit probability (EPSS)2%

AV:N/AC:L/Au:N/C:P/I:P/A:N

Affected products we track (1)

PHP

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

CVE-2010-2191

Summary

Impact & exploitability

Affected products we track (1)

Recommendation

Additional information