CVE-2026-44823
Status: ModifiedHigh (7.8)—
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Base score: 7.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.47%
- Percentile among all scored CVEs: 38
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution90 % - Primary impact
T1059Command and Scripting Interpreterexecution85 %
AV:L + UI:R (abrir archivo preparado en Excel) → ejecución en cliente (T1203). CWE-197 (truncamiento numérico) + descripción 'execute code' → T1059 como impacto principal.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (7)
CWEs
- CWE-197, CWE-416
References
Raw JSON (NVD)
Show
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