CVE-2026-85234
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Red Hat Enterprise Linux 10
PublishedSep 15, 2026
First seenSep 15, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
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