VulnSocial

CVE-2026-12315(mozilla / firefox)

LOWCVSS 9.1 · CRITICAL

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

mozilla CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-693

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • firefox
  • thunderbird

Affected systems

Vendors
mozilla
Products
firefoxthunderbird

Deep dive

Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-12315 DOM Security Component Mitigation Bypass in Firefox Versions Below 152 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-12315

    Post summary

    The text merely states a CVE name and links to a vulnerability page without providing evidence of exploitation, PoC, patches, or technical specifics.

    0000043
    4.0K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillafirefox---
Appmozillathunderbird---
Appmozillathunderbird---

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