HOMEVULNERABILITIESCVE-2019-5786
HIGHCISA KEVIN THE WILD

CVE-2019-5786

Published: May 23, 2022

EPSS:89.45%probability of exploitation in 30 daysPercentile:99.5th

Official Description

Google Chrome Blink contains a heap use-after-free vulnerability that allows an attacker to potentially perform out of bounds memory access via a crafted HTML page.

NVD Source

CISA KEV Advisory

Google Chrome Blink Use-After-Free Vulnerability

Google Chrome Blink contains a heap use-after-free vulnerability that allows an attacker to potentially perform out of bounds memory access via a crafted HTML page.

Added to KEV: 2022-05-23Federal patch deadline: 2022-06-13
Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in Google Chrome's Blink engine is a heap use-after-free flaw, allowing an attacker to potentially perform out-of-bounds memory access via a crafted HTML page. With a high EPSS score of 0.89450 and its presence in CISA's KEV, this flaw is actively exploited and poses a significant risk to browser security.

Active exploitation of this vulnerability has been observed in the wild and it is listed in CISA's KEV, indicating confirmed real-world attacks. The flaw is remotely exploitable, typically through malicious websites.

Recommended Action

Users should update Google Chrome to the latest patched version immediately. Ensure all web browsers are kept up-to-date to protect against such memory corruption vulnerabilities.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2019-5786 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2019-5786 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Affected Vendors & Products

Mentioned vendors (from description):
Google
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
External links open in a new tab. Always verify in a controlled environment before use.

All References (1)

Quick Facts

CVE IDCVE-2019-5786
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)89.45%
PublishedMay 23, 2022

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2019-5786 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.