CVE catalog
CVE-2026-14266
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 int
- Severity
- High · CVSS 7
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.74% · Oct 25, 2026
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.
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 | 7zip | sid | 26.05+dfsg-1 | fixed |
| Debian | 7zip | forky | 26.05+dfsg-1 | fixed |
| Debian | 7zip | trixie | 25.01+dfsg-1~deb13u2 | vulnerable |
| Debian | 7zip | bookworm | 22.01+really26.01+dfsg-0+deb12u1 | vulnerable |
| Debian | 7zip | bookworm-security | 22.01+really26.02+dfsg-0+deb12u1 | fixed |
| Debian | p7zip | trixie | 16.02+transitional.1 | fixed |
| Debian | p7zip | bookworm | 16.02+really26.01+dfsg-0+deb12u1 | vulnerable |
| Debian | p7zip | bookworm-security | 16.02+really26.02+dfsg-0+deb12u1 | fixed |
| Suse | 7zip | linux enterprise module for basesystem 15 sp7 | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise high performance computing 15 sp4-espos | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise high performance computing 15 sp4-ltss | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise high performance computing 15 sp5-espos | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise high performance computing 15 sp5-ltss | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise server 15 sp4-ltss | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise server 15 sp5-ltss | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise server 15 sp6-ltss | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise server for sap applications 15 sp4 | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise server for sap applications 15 sp5 | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise server for sap applications 15 sp6 | 26.02-150400.9.9.1 | fixed |
| Suse | 7zip | linux enterprise server 16.0 | 26.02-160000.1.1 | fixed |
| Suse | 7zip | linux enterprise server for sap applications 16.0 | 26.02-160000.1.1 | fixed |
| Opensuse | 7zip | leap 16.0 | 26.02-160000.1.1 | fixed |
| Opensuse | 7zip | tumbleweed | 26.02-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | 7zip | source | sid | 26.02+dfsg-1 | not yet assigned | Not reported | [1142293] |
| Debian | 7zip | source | forky | 26.02+dfsg-1 | not yet assigned | Not reported | [1142293] |
| Debian | 7zip | source | trixie | (unfixed) | not yet assigned | Not reported | [1142293] |
| Debian | 7zip | source | bookworm | 22.01+really26.02+dfsg-0+deb12u1 | not yet assigned | Not reported | [1142293] |
| Debian | p7zip | source | trixie | 16.02+transitional.1 | not yet assigned | Not reported | Not reported |
| Debian | p7zip | source | bookworm | 16.02+really26.02+dfsg-0+deb12u1 | not yet assigned | Not reported | Not reported |
| Suse | 7zip | rpm | linux enterprise module for basesystem 15 sp7 | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise high performance computing 15 sp4-espos | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise high performance computing 15 sp4-ltss | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise high performance computing 15 sp5-espos | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise high performance computing 15 sp5-ltss | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server 15 sp4-ltss | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server 15 sp5-ltss | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server 15 sp6-ltss | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server for sap applications 15 sp4 | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server for sap applications 15 sp5 | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server for sap applications 15 sp6 | 26.02-150400.9.9.1 | Not reported | SUSE-SU-2026:3869-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server 16.0 | 26.02-160000.1.1 | Not reported | SUSE-SU-2026:23317-1 | Not reported |
| Suse | 7zip | rpm | linux enterprise server for sap applications 16.0 | 26.02-160000.1.1 | Not reported | SUSE-SU-2026:23317-1 | Not reported |
| Opensuse | 7zip | rpm | leap 16.0 | 26.02-160000.1.1 | Not reported | OPENSUSE-SU-2026:21641-1 | Not reported |
| Opensuse | 7zip | rpm | tumbleweed | 26.02-1.1 | Not reported | OPENSUSE-SU-2026:11319-1 | Not reported |
Notes
[trixie] 7zip: Minor issue, will be fixed via spu
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [7zip]Affected
Details (6)
22.01+really26.01+dfsg-0+deb12u1· amd64 · bookwormAffected · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
22.01+really26.01+dfsg-0+deb12u1· arm64 · bookwormAffected · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
25.01+dfsg-1~deb13u1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
25.01+dfsg-1~deb13u1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
22.01+really26.02+dfsg-0+deb12u1· amd64 · bookworm-securityFixed · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
22.01+really26.02+dfsg-0+deb12u1· arm64 · bookworm-securityFixed · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
- [p7zip]Affected
Details (4)
16.02+really26.01+dfsg-0+deb12u1· amd64 · bookwormAffected · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
16.02+really26.01+dfsg-0+deb12u1· arm64 · bookwormAffected · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
16.02+really26.02+dfsg-0+deb12u1· amd64 · bookworm-securityFixed · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
16.02+really26.02+dfsg-0+deb12u1· arm64 · bookworm-securityFixed · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
- [p7zip-full]Affected
Source package: [p7zip]
Details (4)
16.02+really26.01+dfsg-0+deb12u1· amd64 · bookwormAffected · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
16.02+really26.01+dfsg-0+deb12u1· arm64 · bookwormAffected · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
16.02+really26.02+dfsg-0+deb12u1· amd64 · bookworm-securityFixed · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
16.02+really26.02+dfsg-0+deb12u1· arm64 · bookworm-securityFixed · Fixed:
16.02+really26.02+dfsg-0+deb12u1nvd · p7zip · debian · bookworm; nvd · p7zip · debian · 12
- [7zip-standalone]Fixed
Source package: [7zip]
Details (2)
25.01+dfsg-1~deb13u1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
25.01+dfsg-1~deb13u1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
22.01+really26.02+dfsg-0+deb12u1nvd · 7zip · debian · bookworm; nvd · 7zip · debian · 12
[Debian 13 (Trixie)]
- [7zip]Affected
Details (2)
25.01+dfsg-1~deb13u2· amd64 · trixieAffected
nvd · 7zip · debian · 13
25.01+dfsg-1~deb13u2· arm64 · trixieAffected
nvd · 7zip · debian · 13
- [7zip-standalone]Affected
Source package: [7zip]
Details (2)
25.01+dfsg-1~deb13u2· amd64 · trixieAffected
nvd · 7zip · debian · 13
25.01+dfsg-1~deb13u2· arm64 · trixieAffected
nvd · 7zip · debian · 13
- [p7zip]Fixed
Details (2)
16.02+transitional.1· all · trixieFixed · Fixed:
16.02+transitional.1nvd · p7zip · debian · 13
16.02+transitional.1· all · trixieFixed · Fixed:
16.02+transitional.1nvd · p7zip · debian · 13
- [p7zip-full]Fixed
Source package: [p7zip]
Details (2)
16.02+transitional.1· all · trixieFixed · Fixed:
16.02+transitional.1nvd · p7zip · debian · 13
16.02+transitional.1· all · trixieFixed · Fixed:
16.02+transitional.1nvd · p7zip · debian · 13
[openSUSE Tumbleweed]
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11319-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-14266]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-14266]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23317-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3869-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11319-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21641-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-14266]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14266.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2369.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]