How severe is CVE-2023-43621?

CVE-2023-43621 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-43621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43621?

CVE-2023-43621 affects Schollz Croc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43621?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-43621 published?

CVE-2023-43621 was published on 2023-09-20 and last updated on 2026-06-17.

CVE-2023-43621

CVE-2023-43621 is a medium-severity vulnerability in Schollz Croc with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Schollz Croc
Published: 2023-09-20
Last modified: 2026-06-17

Description

An issue was discovered in Croc through 9.6.5. The shared secret, located on a command line, can be read by local users who list all processes and their arguments.

Frequently asked questions

What is CVE-2023-43621?: An issue was discovered in Croc through 9.6.5. The shared secret, located on a command line, can be read by local users who list all processes and their arguments.
How severe is CVE-2023-43621?: CVE-2023-43621 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-43621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43621?: CVE-2023-43621 affects Schollz Croc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43621?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43621 published?: CVE-2023-43621 was published on 2023-09-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:schollz:croc:*:*:*:*:*:*:*:*

More vulnerabilities in Schollz Croc

CVE-2023-43620 — High (CVSS 7.8): An issue was discovered in Croc through 9.6.5. A sender may place ANSI or CSI escape sequences in a filename to attack…
CVE-2023-43619 — High (CVSS 7.8): An issue was discovered in Croc through 9.6.5. A sender may send dangerous new files to a receiver, such as executable…
CVE-2023-43616 — Medium (CVSS 5.5): An issue was discovered in Croc through 9.6.5. A sender can cause a receiver to overwrite files during ZIP extraction.
CVE-2023-43618 — Medium (CVSS 5.3): An issue was discovered in Croc through 9.6.5. The protocol requires a sender to provide its local IP addresses in…
CVE-2023-43617 — Medium (CVSS 5.3): An issue was discovered in Croc through 9.6.5. When a custom shared secret is used, the sender and receiver may divulge…

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