CVE-2026-8970Disclosure(mozilla / firefox)

LOWCVSS 8.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch mozilla firefox systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-269

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
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
firefoxthunderbird

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-19: 2Patch / Workaround · 2026-05-19: 1Technical Details · 2026-05-19: 205-19
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets3 URLs
Full discourse2 posts
  • CVE@CVEnew
    Patch

    CVE-2026-8970 Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. https://www.cve.org/CVERecord?id=CVE-2026-8970

    Post summary

    CVE-2026-8970 is a privilege‑escalation flaw in Firefox and Thunderbird’s Security component that has been fixed in the cited releases; no PoC or active exploitation is reported.

    00000171
    57.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-8970 Privilege Escalation in Firefox Security Component Versions Below 151 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-8970 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3

    Post summary

    The text announces the discovery of CVE-2026-8970, a privilege‑escalation flaw affecting Firefox security components below version 151, and directs readers to official vulnerability details.

    0000064
    4.0K followersView on X
CPE platform detail4 entries

4 of 4 entries

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

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