CVE-2021-33420

Public Exploit

Description

A deserialization issue discovered in inikulin replicator before 1.0.4 allows remote attackers to run arbitrary code via the fromSerializable function in TypedArray object.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.46%
Third-Party Advisory checkmarx.net Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/inikulin/replicator/issues/16 third party advisory
https://github.com/inikulin/replicator/pull/17 third party advisory
https://github.com/inikulin/replicator/commit/2c626242fb4a118855262c64b5731b2ce98e521b third party advisory patch
https://advisory.checkmarx.net/advisory/CX-2021-4787 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-33420?
CVE-2021-33420 has been scored as a critical severity vulnerability.
How to fix CVE-2021-33420?
To fix CVE-2021-33420, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33420 being actively exploited in the wild?
It is possible that CVE-2021-33420 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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