Home / mailings [SECURITY] [DSA 6375-1] fastnetmon security update
Posted on 02 July 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6375-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
July 02, 2026 https://www.debian.org/security/faq
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Package : fastnetmon
CVE ID : CVE-2026-48683 CVE-2026-48684 CVE-2026-48685 CVE-2026-48686
CVE-2026-48687 CVE-2026-48688 CVE-2026-48689 CVE-2026-48690
CVE-2026-48691 CVE-2026-48694 CVE-2026-48695 CVE-2026-48696
Multiple security issues have been discovered in FastNetMon, a fast DDoS
analyzer: TLS connections were insufficently validated and malformed
Netflow/sFlow traffic could result in denial of service.
For the stable distribution (trixie), these problems have been fixed in
version 1.2.9-0+deb13u1.
We recommend that you upgrade your fastnetmon packages.
For the detailed security status of fastnetmon please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/fastnetmon
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
