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CVE-2022-23459

CRITICALCVSS 9.8/10EPSS 0.84%

Last modified

CVE-2022-23459 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Jsonxx or Json++ is a JSON parser, writer and reader written in C++. In affected versions of jsonxx use of the Value class may lead to memory corruption via a double free or via a use after free. EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

Jsonxx or Json++ is a JSON parser, writer and reader written in C++. In affected versions of jsonxx use of the Value class may lead to memory corruption via a double free or via a use after free. The value class has a default assignment operator which may be used with pointer types which may point to alterable data where the pointer itself is not updated. This issue exists on the current commit of the jsonxx project. The project itself has been archived and updates are not expected. Users are advised to find a replacement.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
0.84%

53.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
HjiangJson\+\+1.0.0
HjiangJson\+\+1.0.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-23459?
Jsonxx or Json++ is a JSON parser, writer and reader written in C++. In affected versions of jsonxx use of the Value class may lead to memory corruption via a double free or via a use after free. The value class has a default assignment operator which may be used with pointer types which may point to alterable data where the pointer itself is not updated. This issue exists on the current commit of the jsonxx project. The project itself has been archived and updates are not expected. Users are advised to find a replacement.
How severe is CVE-2022-23459?
CVE-2022-23459 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.
How do I fix CVE-2022-23459?
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-2022-23459?

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

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Source: NVD / NIST