CVE-2019-17020

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

1.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 64.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

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

2020-01-08 21:29Z6 YR AGO

Last updated

2024-08-05 01:24Z2 YR AGO

Reserved

2019-09-30

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-611Improper Restriction of XML External Entity ReferenceBase
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

f55966cad732fa3eec8b1626af4b4da62a63a1a51f2430a4b1c77dd64633e8ab

• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1597645x_refsource_MISC
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2020-01/x_refsource_CONFIRM
• usn.ubuntu.comUSN-4234-1https://usn.ubuntu.com/4234-1/vendor-advisoryx_refsource_UBUNTU