DEBIAN-CVE-2026-102253
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-102253
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102253.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-102253
- Upstream
- Published
- 2026-09-29T21:17:13Z
- Modified
- 2026-10-01T09:00:45Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- [none]
- Details
-
iperf3 versions prior to 3.22 contains a denial of service vulnerability that allows unauthenticated remote attackers to crash-loop the server's UDP receive worker into an unrecoverable infinite loop by sending a single crafted control-channel parameter message followed by one 16-byte UDP datagram. Attackers can permanently pin the affected per-stream receive thread at approximately 100% CPU usage, rendering the server unusable until forcibly killed with SIGKILL, as the process does not respond to normal control-channel closure.
- References
Affected packages
Debian:12 / iperf3
Package
- Name
- iperf3
- Purl
- pkg:deb/debian/iperf3?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / iperf3
Package
- Name
- iperf3
- Purl
- pkg:deb/debian/iperf3?arch=source&distro=trixie
Debian:14 / iperf3
Package
- Name
- iperf3
- Purl
- pkg:deb/debian/iperf3?arch=source&distro=forky