Expired Pointer Dereference Affecting envoyproxy/envoy package, versions [,1.33.12)[1.34.0, 1.34.10)[1.35.0,1.35.6)[1.36.0, 1.36.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 Oct 2025
- disclosed16 Oct 2025
- creditcasper-lc
Introduced: 16 Oct 2025
NewCVE-2025-62504 (opens in a new tab)How to fix?
Upgrade envoyproxy/envoy to version 1.33.12, 1.34.10, 1.35.6, 1.36.2 or higher.
Overview
Affected versions of this package are vulnerable to Expired Pointer Dereference in the Lua filter when a Lua script rewrites a response body so that its size exceeds the configured per_connection_buffer_limit_bytes, which results in the process crashing due to dangling references. An attacker can cause a crash of the process by adding a malicious Lua filter file and triggering an oversized rewritten response body. This is only exploitable if the attacker has sufficient privileges to add a Lua filter file.