ALPINE-CVE-2023-0809 — Vulnetix

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ALPINE-CVE-2023-0809 PUBLISHED CVSS 5.300000190734863 MEDIUM

In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.

Risk Scores

CVSS v3.1

5.300000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products

Vendor	Product	Versions
Alpine:v3.23	mosquitto	0, 1.4.15-r0, 2.0.15-r3
Alpine:v3.21	mosquitto	1.4.10-r2, 0, 1.2.2-r0
Alpine:v3.20	mosquitto	0, 1.2.2-r0, 1.2.2-r1
Alpine:v3.18	mosquitto	2.0.12-r1, 0, 1.2.2-r0
Alpine:v3.19	mosquitto	1.2.2-r0, 1.3-r1, 1.4.15-r2
Alpine:v3.22	mosquitto	0, 1.2.2-r0, 1.2.2-r1

Timeline

Oct 2, 2023 CVE Published
Dec 3, 2025 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2023-0809 advisory

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