CVE-2026-84784
QUIC: Unbounded RETIRE_CONNECTION_ID Backlog
CVE-2026-84784 is fixed in 14 products on 1 platform, first by libssl3t64 3.5.5-1ubuntu3.6, released September 28, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0061
49th percentile
QUIC: Unbounded RETIRE_CONNECTION_ID Backlog (bsc#1280599).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libssl3t64 · Ubuntu 26.04.1 LTS (resolute) | 3.5.5-1ubuntu3.6 | libssl3t64 3.5.5-1ubuntu3.6 | Sep 28, 2026 |
| openssl · Debian 13.5 (trixie) | 3.5.7-1~deb13u3 | DEBIAN-CVE-2026-84784 | Sep 30, 2026 |
| openssl · Debian 14 | 3.6.5-1 | DEBIAN-CVE-2026-84784 | Sep 30, 2026 |
| openssl · Ubuntu 26.04.1 LTS (resolute) | 3.5.5-1ubuntu3.6 | openssl 3.5.5-1ubuntu3.6 | Sep 28, 2026 |
| openssl · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-3 · opensuse-leap 16.0 | 3.5.0-160000.11.1 | OPENSUSE-SU-2026:22102-1 | Nov 7, 2026 |
| openssl-3 · sles 15.7 | 3.5.0-150700.5.53.2 | SUSE-SU-2026:4414-1 | Oct 2, 2026 |
| openssl-3 · sles 16.0 | 3.5.0-160000.11.1 | SUSE-SU-2026:24245-1 | Nov 7, 2026 |
| openssl-debuginfo · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-debugsource · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-devel · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-fips-provider-latest · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-fips-provider-latest-debuginfo · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-libs · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-libs-debuginfo · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-perl · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-provider-legacy · Ubuntu 26.04.1 LTS (resolute) | 3.5.5-1ubuntu3.6 | openssl-provider-legacy 3.5.5-1ubuntu3.6 | Sep 28, 2026 |
| openssl-snapsafe-libs · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
| openssl-snapsafe-libs-debuginfo · amzn 2023 | 1:3.5.8-1.amzn2023.0.3 | ALAS2023-2026-3204 | Nov 7, 2026 |
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