What is CVE-2018-19396?

CVE-2018-19396 is a high-severity vulnerability in Php, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2018-11-20.

How severe is CVE-2018-19396?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-19396 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Php

CVE-2018-19396

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.046 (90.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Php
N/a — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
cve@mitre.org (Exploit, Mailing List, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-19396?: CVE-2018-19396 is a high-severity vulnerability in Php, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2018-11-20.
How severe is CVE-2018-19396?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-19396 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.