CVE-2026-94450: Potential denial of service when configured to send Retry packets in s2n-quic
AWS · s2n-quic
Vendor fix available · Affected: AWS s2n-quic · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 80% of scored CVEs
DescriptionCVE.org
Improper validation of the Destination Connection ID length in s2n-quic 1.88.0 and earlier may allow an unauthenticated remote user to cause a denial of service by shutting down a server endpoint via a single crafted UDP datagram. Only server endpoints specifically configured to send Retry packets are affected. To remediate this issue, users should upgrade to version v1.89.0 or later.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- AWS · s2n-quicup to and including 1.88.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- AWS
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-94450 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.