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CVE-2023-22551

HIGHCVSS 7.5/10EPSS 1.51%

Last modified

CVE-2023-22551 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The FTP (aka "Implementation of a simple FTP client and server") project through 96c1a35 allows remote attackers to cause a denial of service (memory consumption) by engaging in client activity, such as establishing and then terminating a connection. This occurs because malloc is used but free is not.. EPSS estimates a 1.51% chance of exploitation in the next 30 days.

Description

The FTP (aka "Implementation of a simple FTP client and server") project through 96c1a35 allows remote attackers to cause a denial of service (memory consumption) by engaging in client activity, such as establishing and then terminating a connection. This occurs because malloc is used but free is not.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.51%

71.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
Ftp ProjectFtp<= 2012-03-28

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-22551?
The FTP (aka "Implementation of a simple FTP client and server") project through 96c1a35 allows remote attackers to cause a denial of service (memory consumption) by engaging in client activity, such as establishing and then terminating a connection. This occurs because malloc is used but free is not.
How severe is CVE-2023-22551?
CVE-2023-22551 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.51% probability of exploitation in the next 30 days.
How do I fix CVE-2023-22551?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-22551?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST