[ CVE-2026-84895 · Published 28 Sep 2026 ]
Vulnerability in Facebook proxygen
CVSS 7.3
EPSS <1%No fix listed yet
[ Description ]Official description
In proxygen from v2026.04.06.00 until v2026.09.28.00, QuicWtSession::closeSession accesses its member fields after calling the base QuicWtSessionBase::closeSession method. The base method notifies the session handler, which may release the last reference to the session and destroy it.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.