CVE-2023-23399 | Microsoft Excel Remote Code Execution Vulnerability

Exp

Microsoft Excel Remote Code Execution Vulnerability

Published: 2023-03-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-23399 is rated High Exploit Risk (70.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.53%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-23399

EDB-ID Source Kind Published Link
51328 exploit_db edb 2023-04-08 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-23399

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 7.35% 2.53% -4.82%
2 2026-04-18 3.73% 7.35% +3.62%
3 2026-03-27 — 3.73% —

Full EPSS history (34 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-23399

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2023-23399

Affected software / configurations for CVE-2023-23399

Vendor Product Version Raw CPE
microsoft 365_apps — cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*
microsoft excel 2013 cpe:2.3:a:microsoft:excel:2013:sp1:*:*:-:*:*:*
microsoft excel 2013 cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*
microsoft excel 2016 cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:*
microsoft office 2013 cpe:2.3:a:microsoft:office:2013:sp1:*:*:-:*:*:*
microsoft office 2013 cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*
microsoft office 2016 cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:*:*
microsoft office 2019 cpe:2.3:a:microsoft:office:2019:*:*:*:*:-:*:*
microsoft office 2019 cpe:2.3:a:microsoft:office:2019:*:*:*:*:macos:*:*
microsoft office_long_term_servicing_channel 2021 cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:*:*
microsoft office_long_term_servicing_channel 2021 cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*
microsoft office_online_server — cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*
microsoft office_web_apps_server 2013 cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:*

References for CVE-2023-23399

cvelogic Threat Intelligence