CVE-2023-42757
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of...
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.
- Record
CVE-2023-42757- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2023-47189
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.
- Record
EUVD-2023-47189- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4996-x4q8-5x37
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of...
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.
- Record
GHSA-4996-x4q8-5x37- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.
- Record
CVE-2023-42757- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-42757 is a medium vulnerability (CVSS 4.2), published May 7, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. No source names a fixed version.