CVE-2018-19396
CVSS v3
7.5
HIGH
EPSS Score
4.6 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2018-19396 Red Hat Product Security
php: Serializing or unserializing COM objects crashes
Description
ext/standard/var_unserializer.c in PHP 5.x through 7.1.24 allows attackers to cause a denial of service (application crash) via an unserialize call for the com, dotnet, or variant class.
Technical details
- Published
- 2018-11-20
Frequently asked questions
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