AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2018-6345

CRITICAL · CVSS 9.8 EPSS 1.75% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-01-15 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-6345
Severity
CRITICAL
CVSS
9.8
EPSS
1.75%

Original NVD Description

The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large. The internal implementation of the function will cause a string to be created with an invalid length, which can then interact poorly with other functions. This affects all supported versions of HHVM (3.30.1 and 3.27.5 and below).

Related CVEs

Other vulnerabilities affecting the same vendor(s)