CVE-2026-93006Dnsmasq: dnsmasq: tftp prefetch cache keyed on stale heap pointer serves wrong file content
Updated under an hour ago ()
Does this affect you?
It affects Red Hat Ceph Storage 9 and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
A flaw was found in dnsmasq. The TFTP server can serve the wrong file contents because a recently used transfer cache is not invalidated when a transfer finishes. An attacker on the local network who can request a TFTP file may cause a later client to receive previously cached data instead of the requested file. In PXE network-boot environments this can substitute attacker-chosen boot content for a victim machine.
- CVSS
- 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-672
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 29, 2026
- First seen by InfoSec Signals
- Oct 29, 2026
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.