> CVE-2026-4430 [MEDIUM]

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PUBLISHED
2026-05-07 08:16
MODIFIED
2026-05-07 08:16
CVSS_SCORE V3
5.4
EPSS (Prob. Exploit)
0.11%
Top 98.8%
DATA SOURCES:
NVD đź”— 2026-05-07 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-10-25 GITHUB đź”— 2026-10-29

> DESCRIPTION

Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/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

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/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
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Unknown (P)
Interaction inconnue
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-787

> CWE DETAILED DESCRIPTIONS

CWE-787: Out-of-bounds Write - The product writes data past the end, or before the beginning, of the intended buffer.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring Syste...
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring Syste...
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common V...
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Secur...
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat...
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate....
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate....
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat...
Red Hat Security Advisory: libreoffice security update
An update for libreoffice is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

> GITHUB SECURITY ADVISORY

GHSA-wmj8-9953-vff5 HIGH

OpenCost ServiceKey Endpoint Unauthorized Credential Overwrite/Injection

AFFECTED PACKAGES:
GO / github.com/opencost/opencost
< 1.119.1
Fixed in: 1.119.1

> HISTORIQUE DES MODIFICATIONS

Première apparition
07/05/2026 08:16
Source: NVD
đź“Š ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-787: Out-of-bounds Write - The product writes data past the end, or before the beginning, of the intended buffer.
Total des modifications: 1 Dernière mise à jour: 5 months ago

> REFERENCES

https://www.libreoffice.org/about-us/security/advisories/cve-2026-4430
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