CVE-2026-4712General(mozilla / firefox)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-200

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

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

  • firefox

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-03-24); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
firefox

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-03-24: 1Mentions · 2026-03-26: 1Technical Details · 2026-03-24: 1Technical Details · 2026-03-26: 103-2403-26
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-03-241
General1
2026-03-261
Disclosure1
Full discourse2 posts
  • White Rabbitx@TheRabbitPy
    Disclosure

    CVE-2026-4712 Firefox Cocoa widget info leak (Mar 24 pub). Check NIST: https://nvd.nist.gov/vuln/detail/CVE-2026-4712

    Post summary

    A new CVE (CVE-2026‑4712) has been disclosed, describing an information leak in Firefox's Cocoa widget, with a reference to the NIST NVD entry.

    10020117
    438 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-4712 Information disclosure in the Widget: Cocoa component. This vulnerability affects Firefox < 149 and Firefox ESR < 140.9. https://www.cve.org/CVERecord?id=CVE-2026-4712

    Post summary

    The tweet announces CVE‑2026‑4712 as an information‑disclosure flaw affecting older Firefox versions, without mentioning PoC, exploit, or patch details.

    00000113
    56.8K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillafirefox---

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