Linux · 
Ubuntu · Package update · October 20, 2025
Ubuntu · Package update · October 20, 2025libwebsockets16 4.0.20-2ubuntu1.1: libwebsockets16 4.0.20-2ubuntu1.1 for Ubuntu 22.04.1 LTS (jammy)
libwebsockets16 4.0.20-2ubuntu1.1, released October 20, 2025, fixes 2 CVEs in libwebsockets16. None of them is reported as exploited. Patch Radar priority: Routine.
Routine
CVEs closed
2
None rated Critical
Exploited
0
None reported
Highest CVSS
n/a
No CVSS score published
Highest EPSS
0.0041
35th percentile
Priority of the 2 CVEs
Patch now 0
Urgent 0
High 0
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libwebsockets16 | Ubuntu 22.04.1 LTS (jammy) | 4.0.20-2ubuntu1.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Routine | CVE-2025-11677 | libwebsockets-evlib-ev: Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attac... | n/a | 0.0041 | None reported |
| Routine | CVE-2025-11678 | libwebsockets-evlib-ev: Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS... | n/a | 0.0029 | None reported |
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