# CVE-2023-27371: libmicrohttpd: GNU libmicrohttpd is a small C library that makes it easy to run an HTTP server as part of another application. Secu... CVE-2023-27371 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2023-27371, released February 28, 2023. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2023-27371 - Priority: Routine - CVSS: 5.9 (Moderate) - EPSS: 0.0125 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Feb 28, 2023 ## Description GNU libmicrohttpd is a small C library that makes it easy to run an HTTP server as part of another application. Security Fix(es): * libmicrohttpd: remote DoS (CVE-2023-27371) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.9 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libmicrohttpd Debian 12.15 (bookworm) | 0.9.75-6 | [DEBIAN-CVE-2023-27371](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27371.md) | Feb 28, 2023 | | Linux | libmicrohttpd Debian 13.5 (trixie) | 0.9.75-6 | [DEBIAN-CVE-2023-27371](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27371.md) | Feb 28, 2023 | | Linux | libmicrohttpd Debian 14 | 0.9.75-6 | [DEBIAN-CVE-2023-27371](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27371.md) | Feb 28, 2023 | | Linux | libmicrohttpd RHEL 8 | 1:0.9.59-3.el8 | [RHSA-2023:7090](https://patchblox.com/security/data/fix/linux/rhsa-2023-7090.md) | Nov 14, 2023 | | Linux | libmicrohttpd RHEL 9 | 1:0.9.72-5.el9 | [RHSA-2023:6566](https://patchblox.com/security/data/fix/linux/rhsa-2023-6566.md) | Nov 7, 2023 | | Linux | libmicrohttpd almalinux 8 | 1:0.9.59-3.el8 | [ALSA-2023:7090](https://patchblox.com/security/data/fix/linux/alsa-2023-7090.md) | Nov 14, 2023 | | Linux | libmicrohttpd almalinux 9 | 1:0.9.72-5.el9 | [ALSA-2023:6566](https://patchblox.com/security/data/fix/linux/alsa-2023-6566.md) | Nov 7, 2023 | | Linux | libmicrohttpd amzn 2023 | 1:0.9.73-1.amzn2023.0.4 | [ALAS2023-2025-1133](https://patchblox.com/security/data/fix/linux/alas2023-2025-1133.md) | Jul 29, 2025 | | Linux | libmicrohttpd ol 8 | 1:0.9.59-3.el8 | [ELSA-2023-7090](https://patchblox.com/security/data/fix/linux/elsa-2023-7090.md) | Nov 17, 2023 | | Linux | libmicrohttpd ol 9 | 1:0.9.72-5.el9 | [ELSA-2023-6566](https://patchblox.com/security/data/fix/linux/elsa-2023-6566.md) | Nov 11, 2023 | | Linux | libmicrohttpd rocky 8 | 1:0.9.59-3.el8 | [RLSA-2023:7090](https://patchblox.com/security/data/fix/linux/rlsa-2023-7090.md) | Jun 25, 2026 | | Linux | libmicrohttpd rocky 9 | 1:0.9.72-5.el9 | [RLSA-2023:6566](https://patchblox.com/security/data/fix/linux/rlsa-2023-6566.md) | Jun 25, 2026 | | Linux | libmicrohttpd-debuginfo amzn 2023 | 1:0.9.73-1.amzn2023.0.4 | [ALAS2023-2025-1133](https://patchblox.com/security/data/fix/linux/alas2023-2025-1133.md) | Jul 29, 2025 | | Linux | libmicrohttpd-debugsource amzn 2023 | 1:0.9.73-1.amzn2023.0.4 | [ALAS2023-2025-1133](https://patchblox.com/security/data/fix/linux/alas2023-2025-1133.md) | Jul 29, 2025 | | Linux | libmicrohttpd-devel RHEL 8 | 1:0.9.59-3.el8 | [RHSA-2023:7090](https://patchblox.com/security/data/fix/linux/rhsa-2023-7090.md) | Nov 14, 2023 | | Linux | libmicrohttpd-devel RHEL 9 | 1:0.9.72-5.el9 | [RHSA-2023:6566](https://patchblox.com/security/data/fix/linux/rhsa-2023-6566.md) | Nov 7, 2023 | | Linux | libmicrohttpd-devel almalinux 8 | 1:0.9.59-3.el8 | [ALSA-2023:7090](https://patchblox.com/security/data/fix/linux/alsa-2023-7090.md) | Nov 14, 2023 | | Linux | libmicrohttpd-devel almalinux 9 | 1:0.9.72-5.el9 | [ALSA-2023:6566](https://patchblox.com/security/data/fix/linux/alsa-2023-6566.md) | Nov 7, 2023 | | Linux | libmicrohttpd-devel amzn 2023 | 1:0.9.73-1.amzn2023.0.4 | [ALAS2023-2025-1133](https://patchblox.com/security/data/fix/linux/alas2023-2025-1133.md) | Jul 29, 2025 | | Linux | libmicrohttpd-devel ol 8 | 1:0.9.59-3.el8 | [ELSA-2023-7090](https://patchblox.com/security/data/fix/linux/elsa-2023-7090.md) | Nov 17, 2023 | | Linux | libmicrohttpd-devel ol 9 | 1:0.9.72-5.el9 | [ELSA-2023-6566](https://patchblox.com/security/data/fix/linux/elsa-2023-6566.md) | Nov 11, 2023 | | Linux | libmicrohttpd-doc RHEL 8 | 1:0.9.59-3.el8 | [RHSA-2023:7090](https://patchblox.com/security/data/fix/linux/rhsa-2023-7090.md) | Nov 14, 2023 | | Linux | libmicrohttpd-doc RHEL 9 | 1:0.9.72-5.el9 | [RHSA-2023:6566](https://patchblox.com/security/data/fix/linux/rhsa-2023-6566.md) | Nov 7, 2023 | | Linux | libmicrohttpd-doc almalinux 8 | 1:0.9.59-3.el8 | [ALSA-2023:7090](https://patchblox.com/security/data/fix/linux/alsa-2023-7090.md) | Nov 14, 2023 | | Linux | libmicrohttpd-doc almalinux 9 | 1:0.9.72-5.el9 | [ALSA-2023:6566](https://patchblox.com/security/data/fix/linux/alsa-2023-6566.md) | Nov 7, 2023 | | Linux | libmicrohttpd-doc amzn 2023 | 1:0.9.73-1.amzn2023.0.4 | [ALAS2023-2025-1133](https://patchblox.com/security/data/fix/linux/alas2023-2025-1133.md) | Jul 29, 2025 | | Linux | libmicrohttpd-doc ol 8 | 1:0.9.59-3.el8 | [ELSA-2023-7090](https://patchblox.com/security/data/fix/linux/elsa-2023-7090.md) | Nov 17, 2023 | | Linux | libmicrohttpd-doc ol 9 | 1:0.9.72-5.el9 | [ELSA-2023-6566](https://patchblox.com/security/data/fix/linux/elsa-2023-6566.md) | Nov 11, 2023 | --- Data as of 2026-11-09T01:18:40Z UTC. 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