CVE-2023-23396
Microsoft Excel Denial of Service Vulnerability
Microsoft Excel Denial of Service Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Excel Denial of Service Vulnerability
Microsoft Excel Denial of Service Vulnerability
- Record
CVE-2023-23396- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2023-27496
Microsoft Excel Denial of Service Vulnerability
- Record
EUVD-2023-27496- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gp6v-q35c-7fh4
Microsoft Excel Denial of Service Vulnerability
Microsoft Excel Denial of Service Vulnerability
- Record
GHSA-gp6v-q35c-7fh4- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
Microsoft Excel Denial of Service Vulnerability
- Record
CVE-2023-23396- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | LucaBarile/CVE-2023-23396 | 2023-03-16 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-23396 is a medium vulnerability (CVSS 6.5) in Microsoft Office Online Server, published March 14, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.83%, the 90th percentile. No source names a fixed version.