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CVE-2018-19396: ext/standard/var_unserializer.c in PHP 5.x through 7.1.24 allows attackers to cause a denial of service (ap...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This PHP vulnerability can crash an application when affected PHP versions process certain unserialize calls involving com, dotnet, or variant classes. The business impact is availability loss, not confirmed data theft or code execution in the provided sources. Exposure is most likely in legacy PHP 5.x or PHP 7.1.24-and-earlier applications that deserialize data using unserialize. Internet-facing routes, APIs, queues, or session workflows that accept attacker-influenced serialized input deserve priority review. Treat this as a legacy-platform availability risk. It is not proven exploited in the provided evidence, but affected PHP versions are old and often carry broader risk. Prioritize systems that are internet-facing or business-critical. Mitigation focus: Inventory PHP versions and flag PHP 5.x through 7.1.24.; Check PHP and downstream vendor advisories for corrected packages.; Prioritize replacing unsupported PHP versions with maintained releases..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
3Source links

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Source materials

Affected products

Products and packages named in the record

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n/an/an/aListed
Weakness

CWE details

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