CVE-2019-11721

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

1.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 72.1% 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

Moderate. 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

2019-07-23 13:17Z7 YR AGO

Last updated

2024-08-04 23:03Z2 YR AGO

Reserved

2019-05-03

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-172Encoding ErrorClass

Data version

5.1

Document digest

d019d4fdf43816a455230b7cccb34390d74236a7f70666dc16cde1f9ac3db71f

• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-21/x_refsource_MISC
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1256009x_refsource_MISC
• security.gentoo.orgGLSA-201908-12https://security.gentoo.org/glsa/201908-12vendor-advisoryx_refsource_GENTOO
• lists.opensuse.orgopenSUSE-SU-2019:2248http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2019:2249http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2019:2251http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2019:2260http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlvendor-advisoryx_refsource_SUSE