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CVE-2020-1914

Published: Oct 8, 2020Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-670
9.8CRITICAL
NVD MITRE
EPSS Score
2.5%
Top 16.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-670

Affected Products

Facebook
commercial·USaka meta, facebook inc.
Hermes
Communications
npm
package-ecosystem
hermes-engine
OSS Libraries
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-1914?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://www.facebook.com/security/advisories/cve-2020-1914
facebook.com
https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc
github.com
https://nvd.nist.gov/vuln/detail/CVE-2020-1914
nvd.nist.gov
and 2 more references View all →

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