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Vulnerability Intelligence Report

CVE-2022-40138

An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

No Active Exploit Signals
CVSS Base Score
9.8
CRITICAL
EPSS Probability:0.89%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—

Weaknesses (CWE)

CWE-681 ↗CWE-681: Incorrect Conversion between Numeric Types

Affected Products & Versions

Vendor Product Affected Versions
Facebook Hermes unspecified < commit prior to 6aa825e480d48127b480b08d13adf70033237097 (affected)

References & Technical Advisories

No reference links found.

Threat Intelligence Signals

EPSS Score
0.891%

Identity & Timeline

StatusPUBLISHED
Assigning Authorityfacebook
Reserved2022-09-06T00:00:00
Published2022-10-11T00:00:00
Last Updated2024-08-03T12:14:39

LINK COPIED TO CLIPBOARD