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Fencer Vulns
high 7.8

CVE-2023-33148 json

Microsoft Office Elevation of Privilege Vulnerability

published 2023-07-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-37333

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
1
Exploit-DB

Summary

Microsoft Office Elevation of Privilege Vulnerability

Patch / fix

  • Microsoft Microsoft Office 2013 Click-to-Run (C2R) 15.0.5571.1000

Timeline

  1. Published
  2. First public exploit (EDB-51609)

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

2.06% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-51609 Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege + RCE. remote, 2023-07-20
  • packetstorm.news https://packetstorm.news/files/id/173591 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/173591/Microsoft-Office-365-18.2305.1222.0-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Microsoft Office 2013 Click-to-Run (C2R)
  • Microsoft Microsoft Office 2019
  • Microsoft Microsoft 365 Apps for Enterprise
  • Microsoft Microsoft Office LTSC 2021

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.