Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package tftp (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-TFTP-19843854
- published16 Sept 2026
- disclosed15 Sept 2026
Introduced: 15 Sep 2026
CVE-2026-85234 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tftp package and not the tftp package as distributed by RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2460997
- https://access.redhat.com/security/cve/CVE-2026-85234
- https://access.redhat.com/errata/RHSA-2026:82280
- https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5ce052a1c124acd0661233ec7918327
- https://access.redhat.com/errata/RHSA-2026:78952
- https://access.redhat.com/errata/RHSA-2026:80663