Discover Security Vulnerabilities News
Critical Zero-Day Heap Buffer Overflow Vuln Fixed in Firefox, Thunderbird
A critical zero-day vulnerability that has been exploited in the wild was discovered in Firefox and Thunderbird. This severe bug, CVE-2023-4863, is a heap buffer overflow flaw in the WebP image format.
This flaw could allow a remote attacker to execute arbitrary code when processing a specially crafted image.
Mozilla has released essential updates for Firefox and Thunderbird that mitigate this critical issue. We strongly recommend that all impacted users apply the Firefox and Thunderbird updates released by their distro(s) immediately to protect against exploits leading to crashes and system compromise.
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