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CVE-2022-2421

CRITICALCVSS 9.8/10EPSS 1.12%

Last modified

CVE-2022-2421 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Due to improper type validation in attachment parsing the Socket.io js library, it is possible to overwrite the _placeholder object which allows an attacker to place references to functions at arbitrary places in the resulting query object.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

Due to improper type validation in attachment parsing the Socket.io js library, it is possible to overwrite the _placeholder object which allows an attacker to place references to functions at arbitrary places in the resulting query object.

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
1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SocketSocket.Io-Parser< 3.3.3
SocketSocket.Io-Parser>= 3.4.0, < 3.4.2
SocketSocket.Io-Parser>= 4.0.0, < 4.0.5
SocketSocket.Io-Parser>= 4.1.0, < 4.2.1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2022-2421?
Due to improper type validation in attachment parsing the Socket.io js library, it is possible to overwrite the _placeholder object which allows an attacker to place references to functions at arbitrary places in the resulting query object.
How severe is CVE-2022-2421?
CVE-2022-2421 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.
How do I fix CVE-2022-2421?
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-2022-2421?

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

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Source: NVD / NIST