CVE-2019-20721

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

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 42.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2020-04-16 16:19Z6 YR AGO

Last updated

2024-08-05 02:53Z2 YR AGO

Reserved

2020-04-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

CVSS:3.0/AC:L/AV:A/A:N/C:L/I:L/PR:H/S:C/UI:N

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

45ed44c21f50fd38f019d8f4e981daaca0478458a919a2734ddbe2861ad69865

• kb.netgear.comhttps://kb.netgear.com/000061207/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-Gateways-and-Extenders-PSV-2018-0159x_refsource_CONFIRM