Missing Initialization of a Variable Affecting php53 package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
41.56% (99th percentile)

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  • Snyk IDSNYK-RHEL10-PHP53-22219204
  • published5 Nov 2026
  • disclosed6 Oct 2016

Introduced: 6 Oct 2016

CVE-2016-7480  (opens in a new tab)
CWE-456  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 php53.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php53 package and not the php53 package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

The SplObjectStorage unserialize implementation in ext/spl/spl_observer.c in PHP before 7.0.12 does not verify that a key is an object, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access) via crafted serialized data.

CVSS Base Scores

version 3.1