CVE-2021-33766
En bref
- Sévérité
- HIGH 7.3
- Exploitation
- Exploitation connue (CISA KEV) · ajoutée le 2022-01-18
Exploitée selon l'ENISA depuis le 2022-01-18 - EPSS
- EPSS 98.18 % · centile 100 (2026-10-27)
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- microsoft
- Statut NVD
- Analyzed
Description
Microsoft Exchange Server Information Disclosure Vulnerability
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | NVD · secure@microsoft.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · nvd@nist.gov (Secondary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2021-20443
- GCVE · GCVE-0-2021-33766
Avis du CERT-FR
- CERTFR-2021-AVI-522 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Microsoft · Microsoft Exchange Server 2013 Cumulative Update 23 | affected 15.00.0 < 15.00.1497.015 |
| Microsoft · Microsoft Exchange Server 2016 Cumulative Update 19 | affected 15.01.0 < 15.01.2176.012 |
| Microsoft · Microsoft Exchange Server 2016 Cumulative Update 20 | affected 15.01.0 < 15.01.2242.008 |
| Microsoft · Microsoft Exchange Server 2019 Cumulative Update 8 | affected 15.02.0 < 15.02.0792.013 |
| Microsoft · Microsoft Exchange Server 2019 Cumulative Update 9 | affected 15.02.0 < 15.02.0858.010 |
Références
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33766
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33766
- https://www.zerodayinitiative.com/advisories/ZDI-21-798/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-33766
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |