CVE-2026-14266

highpriority · track · 41EPSS 0.007 · 54 %ileexploit · PoCDEEUFRRUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
3 exploits · PoC
Likely / severe?
0.74% (54th) EPSS
CVSS 7.8 · high
Is it mine?
15 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · bosch_psirt

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9
v3.07highCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.07highCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · zdi-disclosures@trendmicro.comexploitability 1 · impact 5.9
v3.07highCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · Bosch PSIRT DE
v3.17highAV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.4highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122USCWE-122US
05

exploits (3)

Public proof-of-concept and weaponised exploit code.

06

affected products (15)

Products and version ranges known to be affected.

07

advisories (3)

Vendor and ecosystem advisories describing this.

  • BOSCH-SA-0696467-Zip XZ Decompression Heap-based Buffer Overflow bundled with PRI70002026-10-12csaf · bosch_psirtDE

    7-Zip 26.01 and older contains a heap-based buffer overflow in XZ decompression. A crafted XZ archive can cause arbitrary code execution in the current user's context. The vulnerable portable version of 7-Zip is bundled with Bosch Rexroth AG PRI7000. The component must be accessed directly on the customer PC; PRI7000 and its other components cannot exploit the vulnerability indirectly.

  • WID-SEC-W-2026-23697-Zip: Schwachstelle ermöglicht CodeausführungDeutsch2026-07-15csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in 7-Zip ausnutzen, um beliebigen Programmcode auszuführen.

  • CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
08

also known as (6)

Other names and identifiers for this entity.

09

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bdubosch_psirtcert_bundnvdcertfrNVDCVE.orgMITRE
published 2026-07-29modified 2026-10-08
10

references (5)

External citations — patches, advisories, analysis.

scry

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