Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2016-7411

26
FAUCET Score

CVE-2016-7411 is a critical vulnerability affecting PHP versions prior to 5.6.26, where improper handling of object-deserialization failures in ext/standard/var_unserializer.re can lead to memory corruption. This flaw allows remote attackers to trigger a denial of service or potentially achieve other unspecified impacts through a crafted unserialize call referencing a partially constructed object. With a CVSS v3 score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it has not been widely targeted.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.6.25CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.65%
Probability of exploitation in next 30 days
EPSS Percentile
92.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0565 is in the 86th percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php53
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: php54-php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: php55-php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php56-php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php

Vendor Advisories (1)

redhatCVE-2016-7411Moderate

php: Memory corruption when destructing deserialized object

Sep 9, 2016

References

bugs.php.net / bug.php
ExploitIssue Tracking
github.com / php/php-src/commit/6a7cc8ff85827fa9ac715b3a83c2d9147f33cd43
Issue TrackingPatch
security.gentoo.org / glsa/201611-22
openwall.com / lists/oss-security/2016/09/15/10
Mailing List
php.net / ChangeLog-5.php
Release Notes
securityfocus.com / bid/93009
securitytracker.com / id/1036836