DEBIAN-CVE-2026-85234

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Source
https://security-tracker.debian.org/tracker/CVE-2026-85234
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85234.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-85234
Upstream
  • CVE-2026-85234
Published
2026-09-15T18:19:34Z
Modified
2026-09-17T08:47:32Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

Affected packages

Debian:12 / tftp-hpa

Package

Name
tftp-hpa
Purl
pkg:deb/debian/tftp-hpa?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.2+20150808-1.4
5.2+20150808-2
5.2+20240610-1
5.2+20240610-2
5.2+20240610-3
5.3+20251110-1
5.3+20251116-1
5.3+20251209-1
5.3+20251209-2
5.4-1
5.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85234.json"

Debian:13 / tftp-hpa

Package

Name
tftp-hpa
Purl
pkg:deb/debian/tftp-hpa?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.2+20240610-3
5.3+20251110-1
5.3+20251116-1
5.3+20251209-1
5.3+20251209-2
5.4-1
5.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85234.json"

Debian:14 / tftp-hpa

Package

Name
tftp-hpa
Purl
pkg:deb/debian/tftp-hpa?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.3+20251116-1

Affected versions

5.*
5.2+20240610-3
5.3+20251110-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85234.json"