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CVE-2026-12317: Improper Restriction of Operations within the Bounds of a Memory Buffer

🗓️ 16 Jun 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 6 Views

Memory safety bug in Firefox 152 and Thunderbird 152 due to improper buffer restrictions.

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18 Jun 2026 00:00Current
7.3High risk
Vulners AI Score7.3
CVSS 3.17.5
EPSS0.00288
SSVC
6