CVE-2026-85234

תיאור (מקור, אנגלית)

A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.

מדדים

CVSS 3.1

7.5 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-27/9/2026

CWE

CWE-125

קישורים

• https://access.redhat.com/security/cve/CVE-2026-85234
• https://bugzilla.redhat.com/show_bug.cgi?id=2460997
• https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5‮…