Red HatCVE-2026-85234
Red Hat tftp-hpa.: out-of-bounds read
High7.5CVE-2026-85234 · Published Sep 15, 2026 · updated Sep 16, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat Hardened Images Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-125
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 15 | Red Hat Podman: insecure permissions | Medium5.5 | No fix yet |
| Sep 15 | Red Hat file-psd plugin: integer overflow | High7.8 | No fix yet |
| Sep 15 | Red Hat containers/storage: link following | Medium4.4 | No fix yet |
| Sep 15 | Red Hat buildah/copier Go: path traversal | Medium4.5 | No fix yet |
| Sep 15 | Red Hat environment-modules: command injection | High7.3 | No fix yet |
| Sep 15 | Red Hat Enterprise Linux 8: denial of service | Low3.7 | No fix yet |