CVE-2026-62897

.NET Framework Remote Code Execution Vulnerability

En bref

Sévérité: HIGH 7.0
EPSS: EPSS 0.37 % · centile 31 (2026-10-27)
État: PUBLISHED
Publiée: 2026-08-11
Mise à jour: 2026-10-21
Attribuée par: microsoft
Statut NVD: Analyzed

Description

Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 7.0	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 7.0	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · secure@microsoft.com (Secondary)

Faiblesses (CWE)

CWE-190

Avis

GHSA-fx4q-gjrx-2jw6 — Microsoft Security Advisory CVE-2026-62897 – .NET Remote Code Execution Vulnerability

Références européennes

ENISA EUVD · EUVD-2026-56406
GCVE · GCVE-0-2026-62897

Avis du CERT-FR

CERTFR-2026-AVI-1004 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
CERTFR-2026-AVI-1002 — Multiples vulnérabilités dans Microsoft .Net · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* ≥ 17.14.0 < 17.14.38
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* ≥ 18.8.0 < 18.8.3
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 8.0.0 < 8.0.30
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 9.0.0 < 9.0.19
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 10.0.0 < 10.0.11
cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*

Produits affectés

Produit	Versions
Microsoft · .NET 10.0	affected 10.0.0 < 10.0.11
Microsoft · .NET 8.0	affected 8.0.0 < 8.0.30
Microsoft · .NET 9.0	affected 9.0.0 < 9.0.19
Microsoft · Microsoft .NET Framework 3.5	affected 3.5.0 < 2.0.50727.9183 & 3.0.30729.9169
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2	affected 4.7.0 < 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0
Microsoft · Microsoft .NET Framework 3.5 AND 4.8	affected 4.8.0 < 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0
Microsoft · Microsoft .NET Framework 4.8.1	affected 4.8.0.0 < 4.8.9344.0
Microsoft · Microsoft Visual Studio 2022 version 17.14	affected 17.14.0 < 17.14.38
Microsoft · Microsoft Visual Studio 2026 version 18.8	affected 18.0 < 18.8.3

Références

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62897

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
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