CVE-2022-27810

Name: CVE-2022-27810
Creator: NVD / NIST
Published: 2022-10-06T20:15:17.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2022-27810 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. It was possible to trigger an infinite recursion condition in the error handler when Hermes executed specific maliciously formed JavaScript. This condition was only possible to trigger in dev-mode (when asserts were enabled). EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

It was possible to trigger an infinite recursion condition in the error handler when Hermes executed specific maliciously formed JavaScript. This condition was only possible to trigger in dev-mode (when asserts were enabled). This issue affects Hermes versions prior to v0.12.0.

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

0.73%

49.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Facebook	Hermes	< 0.12.0

References

https://www.facebook.com/security/advisories/cve-2022-27810Third Party Advisory
https://www.facebook.com/security/advisories/cve-2022-27810Third Party Advisory

Timeline

Published: Oct 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-27810?

How severe is CVE-2022-27810?

CVE-2022-27810 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2022-27810?

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-2022-27810?

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

Scan your code now

Source: NVD / NIST