CVE-2023-23557criticalCWE-843

CVE-2023-23557: critical vulnerability in Facebook Hermes

Published · Updated

Follow this CVE+ Monitor Hermes

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.8epss 0.9%
An error in Hermes' algorithm for copying objects properties prior to commit a00d237346894c6067a594983be6634f4168c9ad could be used by a malicious attacker to execute arbitrary code via type confusion. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Facebook · Hermes
Related CVEs — Facebook Hermes

In the same product, most dangerous first.

CVE-2020-1896—CVE-2020-1896EPSS 2.5%CVE-2020-1914—CVE-2020-1914EPSS 2.5%CVE-2020-1911—CVE-2020-1911EPSS 2.0%CVE-2020-1912—CVE-2020-1912EPSS 1.8%CVE-2021-24037—CVE-2021-24037EPSS 1.8%CVE-2020-1915—CVE-2020-1915EPSS 1.6%