CVE-2026-84145

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

Not scored by EPSS

EPSS percentile

Not scored by EPSS

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Not recorded

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

2026-09-01 12:18Z47 MIN AGO

Last updated

2026-09-01 12:18Z47 MIN AGO

Reserved

2026-09-01

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

No CWE assigned

Data version

5.2

Document digest

c06b56a7619e7d8eb4a14bbd75622aefbf85ba4d956d69c0a1bd8c348396955b

• bugzilla.mozilla.orgHigh Severity internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40https://bugzilla.mozilla.org/buglist.cgi?bug_id=2054640%2C2054650%2C2054652%2C2055693%2C2055705%2C2058051%2C2058652%2C2058660%2C2059027%2C2061220%2C2061242%2C2061285%2C2061300%2C2061316%2C2061397
• bugzilla.mozilla.orgLow Severity internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40https://bugzilla.mozilla.org/buglist.cgi?bug_id=2058001%2C2059139%2C2062400%2C2062419
• bugzilla.mozilla.orgModerate Severity internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40https://bugzilla.mozilla.org/show_bug.cgi?id=2055678
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-82/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-83/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-84/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-85/