Vulnerability details
CVE-2026-42893
Microsoft Outlook for iOS
Microsoft Outlook for iOS Tampering Vulnerability
CVSS 3.1
7.4High
Official description
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to perform tampering over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.4High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Microsoft Outlook for iOS | 1.0.0 ≤ v < 5.2617.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42893 vendor-advisorypatch
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Details
- Published
- 2026-05-12
- Last updated
- 2026-08-10
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
0.39%
Probability of exploitation in 30 days
34.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')