VulnSocial

CVE-2026-12329Patch(mozilla / firefox)

LOWCVSS 5.3 · MEDIUM

Signal is active with 3 mentions in latest observed window

Immediate actions

  • Patch mozilla firefox systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.

mozilla CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-119CWE-416CWE-476

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

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

  • firefox
  • thunderbird

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 3 signals
  • Technical details provided in 3 signals
  • 3 total mentions across 1 day

Affected systems

Vendors
mozilla
Products
firefoxthunderbird

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-06-16: 3Patch / Workaround · 2026-06-16: 3Technical Details · 2026-06-16: 306-16
Signal classification1 categories
Patch
3100.0%
Referenced assets4 URLs
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-12329 Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12. https://www.cve.org/CVERecord?id=CVE-2026-12329 ----- Traducción: CVE-2026-12329 fallo de seguridad de memoria solucionado en T… http://infoflow.cloud`

    Post summary

    CVE-2026-12329, a memory‑safety bug, has been addressed in Thunderbird ESR 140.12 and Firefox ESR 140.12; no PoC, exploit, or active exploitation is reported.

    0101128
    82 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-12329 Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12. https://www.cve.org/CVERecord?id=CVE-2026-12329

    Post summary

    The post confirms a memory safety flaw in recent Mozilla ESR releases and notes that it has been fixed, with no exploits or PoC mentioned.

    00000172
    57.6K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Patch

    CVE-2026-12329 Memory Safety Bug Fixed in Firefox ESR 140.12 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-12329 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1

    Post summary

    This alert announces CVE‑2026‑12329, a memory safety bug that has been addressed in Firefox ESR 140.12, with links provided for details, and contains no implementations or evidence of active exploitation.

    0000046
    4.0K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillathunderbird---

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