VulnSocial

CVE-2026-4716Disclosure(mozilla / firefox)

LOWCVSS 9.1 · CRITICAL

Signal is active with 3 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

Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

mozilla CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-908

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

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • General: 1 classified signal
  • 3 total mentions across 1 day

Affected systems

Vendors
mozilla
Products
firefox

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-03-24: 3Technical Details · 2026-03-24: 303-24
Signal classification2 categories
Disclosure
266.7%
General
133.3%
Referenced assets3 URLs
Full discourse3 posts
  • The Hacker Wire@TheHackerWire
    Disclosure

    🔴 CVE-2026-4716 - Critical Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thund... https://www.thehackerwire.com/vulnerability/CVE-2026-4716/ https://t.co/QVFFu1SdSN

    Post summary

    The post announces a newly disclosed critical vulnerability (CVE‑2026‑4716) in Firefox’s JavaScript engine involving boundary checks and uninitialized memory, listing the affected product versions.

    0000068
    145 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-4716 Firefox JavaScript Engine Memory Vulnerability in Versions Below 149 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-4716

    Post summary

    This post announces a new memory vulnerability in Firefox’s JavaScript engine (CVE‑2026‑4716) that impacts versions under 149, but it does not provide PoC, exploit tools, or patch information.

    0000046
    4.0K followersView on X
  • CVE@CVEnew
    General

    CVE-2026-4716 Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 149 and Firefox ESR < 140.9. https://www.cve.org/CVERecord?id=CVE-2026-4716

    Post summary

    The post provides a brief disclosure of CVE-2026-4716, noting problematic boundary conditions in Firefox’s JavaScript Engine, without any PoC, exploit, active exploitation, or patch information.

    00000102
    56.8K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillafirefox---

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