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Dossier · Vulnerability

Actively exploited · CISA KEV · NVD published 2023-04-11

CVE-2023-28252

Windows Common Log File System Driver Elevation of Privilege Vulnerability

  1. First PoC
  2. 1030 days →Metasploit
  3. 178 days →First cited attacker

Signals

Exploited in the wild
Yesadded 2023-04-11 · due 2023-05-02 · known ransomware use. An observation, not a forecast.
EPSS · 30-day forecast
49%Chance of exploitation in the next 30 days, 99th percentile of all CVEs. A forecast; KEV outranks it.
CVSS · NVD · HIGH
7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Internet exposure
not stated by sourcesNo exposure census on this CVE's dispatches.

Exploits

8 known · links only

GitHub PoCs · by trust, then stars7

  1. fortra/CVE-2023-28252 ↗Trust ok 100

    ★ 184 · created 2023-06-27

  2. duck-sec/CVE-2023-28252-Compiled-exe ↗Trust ok 100

    A modification to fortra's CVE-2023-28252 exploit, compiled to exe

    ★ 57 · created 2024-01-22

  3. byt3n33dl3/CLFS ↗Trust ok 100

    it's a CVE-2023-28252 (Patched), but feel free to use it for check any outdated software or reseach

    ★ 6 · created 2024-03-21

  4. bkstephen/Compiled-PoC-Binary-For-CVE-2023-28252 ↗Trust ok 100

    The repo contains a precompiled binary which can be run on a Windows machine vulnerable to CVE-2023-28252

    ★ 5 · created 2024-01-01

  5. 726232111/CVE-2023-28252 ↗Trust ok 100

    ★ 0 · created 2023-08-02

  6. Danasuley/CVE-2023-28252- ↗Trust ok 100

    Обнаружение эксплойта CVE-2023-28252

    ★ 0 · created 2023-11-13

  7. Vulmatch/CVE-2023-28252 ↗Trust ok 100

    The TL;DR for the learnings of Windows Vulnerability CVE-2023-28252

    ★ 0 · created 2024-06-16

Fake proof-of-concept repositories have been used to deliver malware to the researchers who run them. The trust verdict is our engine's heuristic over the repository (account age, what it ships, how its stars arrived); it is a reason to read the code first, not a finding about its author.

Metasploit1

  1. Windows Common Log File System Driver (clfs.sys) Elevation of Privilege Vulnerability ↗

    A privilege escalation vulnerability exists in the clfs.sys driver which comes installed by default on Windows 10 21H2, Windows 11 21H2 and Windows Server 20348 operating systems. The clfs.sys driver contains a function CreateLogFile that is used to create open and edit '*.blf' (base log format) files. Inside a .blf file there are multiple blocks of data which contain checksums to verify the integrity of the .blf file and to ensure the file looks

    ruby · seen 2026-10-18

On the wire

0 dispatches

No dispatch on our wire has named this CVE yet.

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