Vulnerability-Lookup

CERTFR-2026-AVI-1382

Vulnerability from certfr_avis - Published: 2026-10-26 - Updated: 2026-10-26

De multiples vulnérabilités ont été découvertes dans Microsoft .Net. Elles permettent à un attaquant de provoquer une élévation de privilèges.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Microsoft	.Net	.NET 10.0 installé sur Windows versions antérieures à 10.0.403
Microsoft	.Net	.NET 10.0 installé sur Linux versions antérieures à 10.0.403
Microsoft	.Net	.NET 11.0 installé sur Windows versions antérieures à 11.0.100-rc.3.26522.148
Microsoft	.Net	.NET 9.0 installé sur Windows versions antérieures à 9.0.320
Microsoft	.Net	.NET 11.0 installé sur Mac OS versions antérieures à 11.0.100-rc.3.26522.148
Microsoft	.Net	.NET 8.0 installé sur Mac OS versions antérieures à 8.0.427
Microsoft	.Net	.NET 9.0 installé sur Linux versions antérieures à 9.0.320
Microsoft	.Net	.NET 11.0 installé sur Mac OS versions antérieures à 11.0.100-rc.3
Microsoft	.Net	ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published) versions antérieures à 9.0.22
Microsoft	.Net	.NET 8.0 installé sur Windows versions antérieures à 8.0.427
Microsoft	.Net	.NET 9.0 installé sur Mac OS versions antérieures à 9.0.320
Microsoft	.Net	.NET 8.0 installé sur Linux versions antérieures à 8.0.427
Microsoft	.Net	.NET source-build Linux tarballs (all archive types) versions antérieures à 10.0.403-servicing.26523.112
Microsoft	.Net	.NET 11.0 installé sur Windows versions antérieures à 11.0.100-rc.3
Microsoft	.Net	.NET 11.0 installé sur Linux versions antérieures à 11.0.100-rc.3
Microsoft	.Net	.NET 11.0 installé sur Linux versions antérieures à 11.0.100-rc.3.26522.148
Microsoft	.Net	.NET 10.0 installé sur Mac OS versions antérieures à 10.0.403

References

Title

Publication Time

Tags

Bulletin de sécurité Microsoft .Net CVE-2026-114148	2026-10-25	vendor-advisory
Bulletin de sécurité Microsoft .Net CVE-2026-111497	2026-10-25	vendor-advisory

Show details on source website

JSON

To clipboard

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    }
  ]
}

CVE-2026-111497 (GCVE-0-2026-111497)

Vulnerability from cvelistv5 – Published: 2026-10-22 13:35 – Updated: 2026-10-28 03:55

Title

Out-of-Bounds Write in Google Brotli Decoder

Summary

A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.

Severity

9.2 (Critical)


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

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-23 00:00 UTC

CWE

CWE-787 - Out-of-bounds Write
CWE-252 - Unchecked Return Value

Assigner

Google CNA under the Google root

CNA scorecard B 77/100 over 40 records in the last 180 days details

References

18 references

URL	Tags
https://nodejs.org/en/blog/vulnerability/october-…	patch
https://github.com/andybalholm/brotli/releases/ta…	release-notesthird-party-advisory
https://ellio.tech/en/blog/node2shell-cve-2026-11…	third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource
https://github.com/advisories/GHSA-9v8h-qqgm-4m35
http://www.openwall.com/lists/oss-security/2026/1…
https://lists.debian.org/debian-lts-announce/2026…
http://www.openwall.com/lists/oss-security/2026/10/24/6
http://www.openwall.com/lists/oss-security/2026/1…
http://www.openwall.com/lists/oss-security/2026/1…
https://www.aikido.dev/blog/node2shell-nodejs-bro…
https://broccoli2shell.com
https://github.com/dotnet/announcements/issues/494
https://github.com/google/brotli/releases/tag/v1.2.1
https://github.com/google/brotli/releases/tag/v1.1.1
https://github.com/google/brotli/releases/tag/v1.0.10
https://patchtheplanet.org/brotli
http://www.openwall.com/lists/oss-security/2026/1…

Impacted products

1 product

Vendor	Product	Version
Google	Brotli	Affected: 1.0.3 , < 1.0.10 (semver) Affected: 1.1.0 , < 1.1.1 (semver) Affected: 1.2.0 , < 1.2.1 (semver)

Date Public

2026-02-27 07:50

Credits

OpenAI Codex Security - Khai Tran and Sylvie Mayer

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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