Vulnerability details
CVE-2026-6746
Red Hat Enterprise Linux 10
Use-after-free in the DOM: Core & HTML component
CVSS 3.1
7.5High
Official description
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 10 | All | CVEProject cvelistV5 (CNA) |
References and advisories
36- https://bugzilla.mozilla.org/show_bug.cgi?id=2014596
- https://www.mozilla.org/security/advisories/mfsa2026-30/
- https://www.mozilla.org/security/advisories/mfsa2026-31/
- https://www.mozilla.org/security/advisories/mfsa2026-32/
- https://www.mozilla.org/security/advisories/mfsa2026-33/
- https://www.mozilla.org/security/advisories/mfsa2026-34/
- https://access.redhat.com/security/cve/CVE-2026-6746 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2460112 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6746.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:19704 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:17690 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19463 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:10767 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:12285 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19041 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19131 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:10766 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:13537 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19655 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19465 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19542 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19466 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:17477 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19467 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:17687 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19468 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:17689 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19461 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19464 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19469 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:17688 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19462 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:10757 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:15892 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19201 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19348 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-04-21
- Last updated
- 2026-07-15
- State
- Published
- Assigner (CNA)
- mozilla
Exploit prediction (EPSS)
0.94%
Probability of exploitation in 30 days
61.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-416Use After Free
- CWE-825Expired Pointer Dereference