DEBIAN-CVE-2026-14266

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Source
https://security-tracker.debian.org/tracker/CVE-2026-14266
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14266.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-14266
Upstream
  • CVE-2026-14266
Published
2026-07-29T18:16:50Z
Modified
2026-09-14T17:02:29Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30169.

References

Affected packages

Debian:12 / 7zip

Package

Name
7zip
Purl
pkg:deb/debian/7zip?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
22.01+really26.02+dfsg-0+deb12u1

Affected versions

22.*
22.01+dfsg-8
22.01+dfsg-8+deb12u1
22.01+dfsg-9
22.01+dfsg-10~exp1
22.01+really25.01+dfsg-0+deb12u1
22.01+really26.01+dfsg-0+deb12u1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14266.json"

Debian:13 / 7zip

Package

Name
7zip
Purl
pkg:deb/debian/7zip?arch=source&distro=trixie

Affected ranges

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

Affected versions

24.*
24.09+dfsg-8
25.*
25.00+dfsg-1
25.01+dfsg-1~deb13u1~bpo12+1
25.01+dfsg-1~deb13u1
25.01+dfsg-1~deb13u2
25.01+dfsg-1
25.01+dfsg-2
25.01+dfsg-3
25.01+dfsg-4
25.01+dfsg-5
26.*
26.00+dfsg-1
26.00+dfsg-2
26.00+dfsg-3
26.00+dfsg-4
26.00+dfsg-5
26.00+dfsg1-1
26.00+dfsg1-2
26.00+dfsg1-3
26.01+dfsg-1
26.01+dfsg-2
26.01+dfsg-3
26.02+dfsg-1
26.02+dfsg-2
26.02+dfsg-3
26.03+dfsg-1
26.03+dfsg-2
26.03+dfsg-3

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14266.json"

Debian:14 / 7zip

Package

Name
7zip
Purl
pkg:deb/debian/7zip?arch=source&distro=forky

Affected ranges

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

Affected versions

24.*
24.09+dfsg-8
25.*
25.00+dfsg-1
25.01+dfsg-1~deb13u1~bpo12+1
25.01+dfsg-1~deb13u1
25.01+dfsg-1~deb13u2
25.01+dfsg-1
25.01+dfsg-2
25.01+dfsg-3
25.01+dfsg-4
25.01+dfsg-5
26.*
26.00+dfsg-1
26.00+dfsg-2
26.00+dfsg-3
26.00+dfsg-4
26.00+dfsg-5
26.00+dfsg1-1
26.00+dfsg1-2
26.00+dfsg1-3
26.01+dfsg-1
26.01+dfsg-2
26.01+dfsg-3

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14266.json"

Debian:12 / p7zip

Package

Name
p7zip
Purl
pkg:deb/debian/p7zip?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
16.02+really26.02+dfsg-0+deb12u1

Affected versions

16.*
16.02+dfsg-8
16.02+really25.01+dfsg-0+deb12u1
16.02+really26.01+dfsg-0+deb12u1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14266.json"

Debian:13 / p7zip

Package

Name
p7zip
Purl
pkg:deb/debian/p7zip?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
16.02+transitional.1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14266.json"