GCVE-110-CERTCA-2026-840

Advisory Published

Vulnetix · Advisory published August 21, 2026

As of August 18, 2026, Mozilla is affected by vulnerabilities in the following products: Firefox versions prior to 154 Firefox ESR versions prior to 115.39 versions prior to 140.14 versions prior to 153.1 Thunderbird versions prior to 140.14 versions prior to 153.1 versions prior to 154 The Cyber Centre encourages users and administrators to review the provided web link and apply any necessary updates as they become available.

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Affected Products

Vendor	Product	Versions	Platforms
versions	versions prior to 153.1	—	—
versions	versions prior to 140.14	—	—
versions	versions prior to 115.39	—	—
versions	versions prior to 154	—	—

References

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