CVE catalog
CVE-2026-85234
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 `genmatc
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.47% · Oct 25, 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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tftp-hpa | sid | 7.2+20261013-2 | fixed |
| Debian | tftp-hpa | forky | 7.2+20261013-2 | fixed |
| Debian | tftp-hpa | trixie | 5.2+20240610-3 | vulnerable |
| Debian | tftp-hpa | bookworm | 5.2+20150808-1.4 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tftp-hpa | source | sid | 5.3+20251116-1 | not yet assigned | Not reported | Not reported |
| Debian | tftp-hpa | source | forky | 5.3+20251116-1 | not yet assigned | Not reported | Not reported |
| Debian | tftp-hpa | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | tftp-hpa | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[trixie] tftp-hpa: Minor issue [bookworm] tftp-hpa: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [tftpd-hpa]Affected
Source package: [tftp-hpa]
Details (2)
5.2+20150808-1.4· amd64 · bookwormAffected
nvd · tftp-hpa · debian · bookworm
5.2+20150808-1.4· arm64 · bookwormAffected
nvd · tftp-hpa · debian · bookworm
- [tftp-hpa]Affected
Details (2)
5.2+20150808-1.4· amd64 · bookwormAffected
nvd · tftp-hpa · debian · bookworm
5.2+20150808-1.4· arm64 · bookwormAffected
nvd · tftp-hpa · debian · bookworm
- [tftp-hpa-dbg]Affected
Source package: [tftp-hpa]
Details (2)
5.2+20150808-1.4· amd64 · bookwormAffected
nvd · tftp-hpa · debian · bookworm
5.2+20150808-1.4· arm64 · bookwormAffected
nvd · tftp-hpa · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_78952.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-85234]
- [https://security-tracker.debian.org/tracker/CVE-2026-85234]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85234.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3848.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]