What is CVE-2020-1896?

CVE-2020-1896 is a critical-severity vulnerability in Facebook Hermes, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-02-02.

How severe is CVE-2020-1896?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Facebook Hermes

CVE-2020-1896

A stack overflow vulnerability in Facebook Hermes 'builtin apply' prior to commit 86543ac47e59c522976b5632b8bf9a2a4583c7d2 (https://github.com/facebook/hermes/commit/86543ac47e59c522976b5632b8bf9a2a4583c7d2) allows attackers to potentially…

Vulnerability class: Buffer Overflow

EPSS: 0.024 (82.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Facebook Hermes — versions commit prior to 86543ac47e59c522976b5632b8bf9a2a4583c7d2

Weakness classification (CWE)

References

cve-assign@fb.com (x_refsource_CONFIRM, Vendor Advisory)
cve-assign@fb.com (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-1896?: CVE-2020-1896 is a critical-severity vulnerability in Facebook Hermes, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-02-02.
How severe is CVE-2020-1896?: Critical severity. CVSS v3 base score is 9.8 out of 10.