CVE-2020-1896

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 84.8% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-02-02 06:50Z5 YR AGO

Last updated

2024-08-04 06:53Z2 YR AGO

Reserved

2019-12-02

Assigning CNA

facebook

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-121Stack-based Buffer OverflowVariant
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

1268d66e93c884d1d649d25a730bf6311ab76885cd7ee3c00c77e871b9d475d7

• www.facebook.comhttps://www.facebook.com/security/advisories/cve-2020-1896x_refsource_CONFIRM
• github.comhttps://github.com/facebook/hermes/commit/86543ac47e59c522976b5632b8bf9a2a4583c7d2x_refsource_CONFIRM