CVE-2019-9791

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

19.91% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 97.2% 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

Critical. 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

2019-04-26 16:13Z7 YR AGO

Last updated

2024-08-04 22:01Z2 YR AGO

Reserved

2019-03-14

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.1

Document digest

fd290930383f5a9a2f6bd3979bbed076b7383d7727a238314c2f099f70daa58a

• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-07/x_refsource_MISC
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-08/x_refsource_MISC
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-11/x_refsource_MISC
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1530958x_refsource_MISC
• access.redhat.comRHSA-2019:0966https://access.redhat.com/errata/RHSA-2019:0966vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2019:1144https://access.redhat.com/errata/RHSA-2019:1144vendor-advisoryx_refsource_REDHAT