{"id":"BIT-apache-2025-55753","summary":"Apache HTTP Server: mod_md (ACME), unintended retry intervals","details":"An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds.\n\nThis issue affects Apache HTTP Server: from 2.4.30 before 2.4.66.\n\n\nUsers are recommended to upgrade to version 2.4.66, which fixes the issue.","aliases":["CVE-2025-55753"],"modified":"2025-12-09T12:27:54.679746Z","published":"2025-12-09T11:38:13.178Z","database_specific":{"cpes":["cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/12/04/4"},{"type":"WEB","url":"https://httpd.apache.org/security/vulnerabilities_24.html"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55753"}],"affected":[{"package":{"name":"apache","ecosystem":"Bitnami","purl":"pkg:bitnami/apache"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.4.30"},{"fixed":"2.4.66"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/apache/BIT-apache-2025-55753.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}],"schema_version":"1.7.3"}