VulnSocial

CVE-2026-12328Disclosure(mozilla / firefox)

LOWCVSS 8.1 · HIGH

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

Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-120CWE-825

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

Threat summary

  • 3 mentions across 1 observed day

What's happening

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

Affected systems

Vendors
mozilla
Products
firefoxthunderbird

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-06-16: 3Technical Details · 2026-06-16: 106-16
Signal classification2 categories
Disclosure
266.7%
General
133.3%
Referenced assets3 URLs
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    General

    🚨*CVE* CVE-2026-12328 Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of m… https://www.cve.org/CVERecord?id=CVE-2026-12328 ----- Traducción: CVE-2026-12328 Err… http://infoflow.cloud`

    Post summary

    The text merely references CVE-2026-12328 and links to its CVE record, without providing additional technical or exploitation details.

    0000019
    82 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-12328 Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of m… https://www.cve.org/CVERecord?id=CVE-2026-12328

    Post summary

    The post references memory safety bugs associated with several Firefox and Thunderbird versions, providing only the CVE identifier and affected releases.

    00000180
    57.6K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-12328 Memory Safety Bugs in Firefox and Thunderbird Multiple Versions https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-12328

    Post summary

    The entry announces a new vulnerability (CVE‑2026‑12328) affecting Firefox and Thunderbird’s memory safety, but provides no PoC, exploit, active exploitation, patch, or detailed technical information.

    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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