Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Memory safety bugs present in Firefox 133 and Thunderbird 133. 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 134 and Thunderbird 134.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
🚨 CRITICAL: CVE-2025-0247 (CVSS 9.8) Memory corruption bugs in Firefox 133 & Thunderbird 133 could enable arbitrary code execution. ✅ PATCH NOW to v134 #CVE #Vulnerability #PatchNow https://t.co/Kwd17rDZFb
🚨 CRITICAL: CVE-2025-0247 (CVSS 9.8) - Memory corruption bugs in Firefox 133 & Thunderbird 133 could enable arbitrary code execution. Update to v134 immediately. #CVE #PatchNow https://t.co/VwxLZWbTIf
Post summary
The tweet announces a critical memory corruption vulnerability in Firefox 133/Thunderbird 133 (CVE‑2025‑0247), urging users to upgrade to v134 immediately.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | mozilla | firefox | - | - | - |
| App | mozilla | thunderbird | - | - | - |