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Critical Vulnerabilities in Mozilla Products Enable Remote Code Execution

Critical Vulnerabilities in Mozilla Products Enable Remote Code Execution

First seen 18 Jun 2026, 03:01 UTC

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ThreatCluster AI
ThreatCluster June 19, 2026 at 02:54 UTC
  • Multiple vulnerabilities in Mozilla products could allow remote code execution.
  • Firefox 152 has been updated to address high-severity vulnerabilities.
  • No active exploitation has been reported, but users are urged to update immediately.

Multiple vulnerabilities have been identified in Mozilla products, including Firefox 152, which could allow for remote code execution (RCE), denial of service, and privilege escalation. The most severe vulnerabilities can be exploited by remote attackers, leading to arbitrary code execution, potentially allowing them to install programs, modify data, or create new accounts. Mozilla has released updates to address these vulnerabilities, urging users to apply the patches immediately. As of now, there are no confirmed reports of these vulnerabilities being actively exploited in the wild, but the potential impact is significant given the widespread use of Mozilla products. Security professionals are advised to monitor for updates and apply fixes promptly to mitigate risks.

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Updated 93d ago How this analysis works

Timeline

2026-06-16
Mozilla releases advisory on vulnerabilities
Mozilla published a security advisory detailing multiple vulnerabilities in its products, including the potential for remote code execution.
Cisecurity
2026-06-16
Firefox 152 released
Mozilla released Firefox 152 to patch multiple high-severity vulnerabilities, emphasizing the urgency for users to update.
Cybersecuritynews
2026-06-18
HKCERT issues warning on vulnerabilities
HKCERT published a security bulletin outlining the vulnerabilities in Mozilla products and recommended applying vendor fixes.
Hkcert

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