DEBIAN-CVE-2026-29004

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Source
https://security-tracker.debian.org/tracker/CVE-2026-29004
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29004.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-29004
Upstream
Published
2026-05-04T18:16:26Z
Modified
2026-09-14T17:03:25Z
Severity
  • 7.2 (High) CVSS_V4 - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c that allows network-adjacent attackers to trigger memory corruption by sending a crafted DHCPv6 response with a malformed D6_OPT_DNS_SERVERS option. Attackers can exploit incorrect heap buffer allocation calculations in the option_to_env() function to cause denial of service or achieve arbitrary code execution on embedded systems without heap hardening.

References

Affected packages

Debian:12 / busybox

Package

Name
busybox
Purl
pkg:deb/debian/busybox?arch=source&distro=bookworm

Affected ranges

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

Affected versions

1:1.*
1:1.35.0-4
1:1.35.0-4+deb12u1
1:1.36.0-1~exp1
1:1.36.1-1
1:1.36.1-2
1:1.36.1-3
1:1.36.1-3.1
1:1.36.1-4
1:1.36.1-5
1:1.36.1-6~exp.1
1:1.36.1-6
1:1.36.1-7
1:1.36.1-8
1:1.36.1-9
1:1.37.0-1
1:1.37.0-2
1:1.37.0-3
1:1.37.0-4
1:1.37.0-5
1:1.37.0-6
1:1.37.0-7
1:1.37.0-8
1:1.37.0-9
1:1.37.0-10
1:1.37.0-10.1
1:1.38.0-1
1:1.38.0-2
1:1.38.0-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29004.json"

Debian:13 / busybox

Package

Name
busybox
Purl
pkg:deb/debian/busybox?arch=source&distro=trixie

Affected ranges

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

Affected versions

1:1.*
1:1.37.0-6
1:1.37.0-7
1:1.37.0-8
1:1.37.0-9
1:1.37.0-10
1:1.37.0-10.1
1:1.38.0-1
1:1.38.0-2
1:1.38.0-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29004.json"

Debian:14 / busybox

Package

Name
busybox
Purl
pkg:deb/debian/busybox?arch=source&distro=forky

Affected ranges

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

Affected versions

1:1.*
1:1.37.0-6
1:1.37.0-7
1:1.37.0-8
1:1.37.0-9
1:1.37.0-10
1:1.37.0-10.1
1:1.38.0-1
1:1.38.0-2
1:1.38.0-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29004.json"