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CVE-2016-7133

26
FAUCET Score

CVE-2016-7133 is an integer overflow vulnerability in Zend/zend_alloc.c affecting PHP 7.x before 7.0.10 when open_basedir is enabled. A remote attacker can exploit this by providing a long pathname, leading to a denial of service or potentially other unspecified impacts. With a CVSS score of 8.1 (HIGH), this vulnerability is remotely exploitable with high impact to confidentiality, integrity, and availability, but requires high attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.0.0CPE matchmatch criteria
cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
7.0.1CPE matchmatch criteria
cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
7.0.2CPE matchmatch criteria
cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
7.0.3CPE matchmatch criteria
cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
7.0.4CPE matchmatch criteria
cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.05%
Probability of exploitation in next 30 days
EPSS Percentile
89.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0405 is in the 53rd percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-7133Moderate

php: memory allocator fails to realloc small block to large one

Sep 2, 2016

References

openwall.com / lists/oss-security/2016/09/02/9
Mailing List
bugs.php.net / bug.php
ExploitIssue Tracking
github.com / php/php-src/commit/c2a13ced4272f2e65d2773e2ea6ca11c1ce4a911
Issue TrackingPatch
security.gentoo.org / glsa/201611-22
php.net / ChangeLog-7.php
Release Notes
securityfocus.com / bid/92765