CERTFR-2026-AVI-0294
Vulnerability from certfr_avis - Published: 2026-03-13 - Updated: 2026-03-13
Une vulnérabilité a été découverte dans Microsoft Office. Elle permet à un attaquant de provoquer une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
None| Vendor | Product | Description | ||
|---|---|---|---|---|
| Microsoft | N/A | Microsoft Excel pour Android versions antérieures à 16.0.19822.20038 | ||
| Microsoft | N/A | Microsoft PowerPoint pour Android versions antérieures à 16.0.19822.20038 | ||
| Microsoft | N/A | Microsoft PowerPoint pour iOS versions antérieures à 2.106.26020617 | ||
| Microsoft | N/A | Microsoft Outlook pour Mac versions antérieures à 5.2605 | ||
| Microsoft | N/A | Microsoft Word pour iOS versions antérieures à 2.106.26020617 | ||
| Microsoft | N/A | Microsoft OneNote pour Android versions antérieures à 16.0.19725.20142 | ||
| Microsoft | N/A | Microsoft Excel pour iOS versions antérieures à 2.106.26020617 | ||
| Microsoft | N/A | Microsoft Outlook pour Android versions antérieures à 5.2605 | ||
| Microsoft | N/A | Microsoft 365 Copilot pour Android versions antérieures à 16.0.19815.10000 | ||
| Microsoft | N/A | Microsoft 365 Copilot pour iOS versions antérieures à 2.107.2 | ||
| Microsoft | N/A | Microsoft Word pour Android versions antérieures à 16.0.19822.20038 | ||
| Microsoft | N/A | Microsoft OneNote pour iOS versions antérieures à 2.106.26020617 | ||
| Microsoft | N/A | Microsoft Outlook pour iOS versions antérieures à 5.2605 |
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Microsoft Excel pour Android versions ant\u00e9rieures \u00e0 16.0.19822.20038",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft PowerPoint pour Android versions ant\u00e9rieures \u00e0 16.0.19822.20038",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft PowerPoint pour iOS versions ant\u00e9rieures \u00e0 2.106.26020617",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Outlook pour Mac versions ant\u00e9rieures \u00e0 5.2605",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Word pour iOS versions ant\u00e9rieures \u00e0 2.106.26020617",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft OneNote pour Android versions ant\u00e9rieures \u00e0 16.0.19725.20142",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Excel pour iOS versions ant\u00e9rieures \u00e0 2.106.26020617",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Outlook pour Android versions ant\u00e9rieures \u00e0 5.2605",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft 365 Copilot pour Android versions ant\u00e9rieures \u00e0 16.0.19815.10000",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft 365 Copilot pour iOS versions ant\u00e9rieures \u00e0 2.107.2",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Word pour Android versions ant\u00e9rieures \u00e0 16.0.19822.20038",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft OneNote pour iOS versions ant\u00e9rieures \u00e0 2.106.26020617",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Outlook pour iOS versions ant\u00e9rieures \u00e0 5.2605",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-26133",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-26133"
}
],
"initial_release_date": "2026-03-13T00:00:00",
"last_revision_date": "2026-03-13T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0294",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-03-13T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Microsoft Office. Elle permet \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Vuln\u00e9rabilit\u00e9 dans Microsoft Office",
"vendor_advisories": [
{
"published_at": "2026-03-12",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-26133",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133"
}
]
}
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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.
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- 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
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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