Microsoft Office Excel Remote Code Execution Vulnerability
CVSS score
8.8
EPSS probability
—
Risk score
0.9
Published
14 h ago
Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.
Impact on My Inventory
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
0/2
Evidence confidence
%55
Short explanation
A use-after-free vulnerability in Microsoft Office Excel, tracked as CVE-2026-108446, allows an unauthorized attacker to execute code over a network. Patches are available for this issue.
This vulnerability permits remote code execution with a high impact on confidentiality, integrity, and availability. Various Microsoft Office products are affected.
What should be done?
- Follow the vendor advisory and patch references.
- Apply the relevant Microsoft Office security updates.
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Chain of evidence and sources
Microsoft Office Excel içinde tespit edilen CVE-2026-108446, serbest bırakılmış belleğin kullanılması (use after free) zafiyetidir.
Yetkisiz bir saldırgan ağ üzerinden kod çalıştırabilir ve zafiyet 8.8 CVSS temel puanına sahiptir.
Açık için yama durumu mevcuttur.
Show the technical text from the sources
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CWE: CWE-416
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-108446 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | microsoft | Microsoft 365 Apps for Enterprise | View |
| 2 | microsoft | Microsoft Office 365 for Mac | View |
| 3 | microsoft | Microsoft Office LTSC 2021 | View |
| 4 | microsoft | Microsoft Office LTSC 2024 | View |
| 5 | microsoft | Microsoft Office LTSC for Mac 2021 | View |
| 6 | microsoft | Microsoft Office LTSC for Mac 2024 | View |
| 7 | microsoft | office online server | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 8.8 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD |
| 8.8 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | CVE CNA |
Patch and Remediation Guide
Solution & Remediation Advisory
2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.
Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-108446 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-108446 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
CVSS Vector Radar Chart
8.8 / 10Vulnerability Scoring Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CYama doğrulandı
Weakness Type (CWE & CAPEC)
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Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-108446"