CVE-2018-19396: php Deserialization of Untrusted Data
CVSS: 7.5v3.0HighModified
Published 20-11-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-19396 is a high (CVSS 7.5) Deserialization of Untrusted Data vulnerability in php. EPSS estimates a 4.58% chance of exploitation in the next 30 days, higher than 91.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
4.58%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 20-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
4.58%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 4.58% on 18-09-2026
18-09-202618-10-2026
EPSS score4.58%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.php.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Php1 product
- php≥ 5.0.0, ≤ 7.1.24
1 vendor · 1 product