CVE-2023-34609

Name: CVE-2023-34609
Creator: NVD / NIST
Published: 2023-06-14T14:15:09.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2023-34609 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered flexjson thru 3.3 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

An issue was discovered flexjson thru 3.3 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.

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

1.18%

63.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Flexjson Project	Flexjson	<= 3.3

References

https://sourceforge.net/p/flexjson/bugs/48/Exploit, Vendor Advisory
https://sourceforge.net/p/flexjson/bugs/49/Exploit, Vendor Advisory
https://sourceforge.net/p/flexjson/bugs/50/Exploit, Vendor Advisory
https://sourceforge.net/p/flexjson/bugs/51/Exploit, Vendor Advisory
https://sourceforge.net/p/flexjson/bugs/48/Exploit, Vendor Advisory
https://sourceforge.net/p/flexjson/bugs/49/Exploit, Vendor Advisory
https://sourceforge.net/p/flexjson/bugs/50/Exploit, Vendor Advisory
https://sourceforge.net/p/flexjson/bugs/51/Exploit, Vendor Advisory

Timeline

Published: Jun 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-34609?

An issue was discovered flexjson thru 3.3 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.

How severe is CVE-2023-34609?

CVE-2023-34609 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2023-34609?

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-2023-34609?

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

Scan your code now

Source: NVD / NIST