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Asterisk FreePBX CVE-2021-40599 Remote DoS via RTP UDP Port Leak

Security Advisory CVE-2021-40599 Medium Asterisk
Affected:
  • Asterisk <= 18.26.3
  • Asterisk <= 18.9-cert16
Fixed in:
  • 18.26.4
  • 18.9-cert17
Referenced CVEs: CVE-2025-54995 · 6.5
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