What is CVE-2023-42757?

CVE-2023-42757 is a medium-severity vulnerability in N/a, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.2/10. Published 2024-05-07.

How severe is CVE-2023-42757?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Is CVE-2023-42757 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in N/a

CVE-2023-42757

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.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (19.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

SafeBreach-Labs/MagicDot

References

Frequently asked questions

What is CVE-2023-42757?: CVE-2023-42757 is a medium-severity vulnerability in N/a, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.2/10. Published 2024-05-07.
How severe is CVE-2023-42757?: Medium severity. CVSS v3 base score is 4.2 out of 10.
Is CVE-2023-42757 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.