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CVE-2026-84784 is a high severity vulnerability with a CVSS score of 7.5. No known exploits currently, and patches are available.
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Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
OpenSSL versions 4.0, 3.6, 3.5 and 3.4 are susceptible to a vulnerability which when successfully exploited could allow the local QUIC stack to send a RETIRE_CONN_ID frame for every NEW_CONNECTION_ID frame it receives and if the remote peer also withholds ACKs it can force the local stack to allocate ~400MB (depending on ACK delay).
| Vendor | Product |
|---|---|
| OpenSSL | OpenSSL |