# libwebsockets-test-server-common 4.0.20-2ubuntu1.1: libwebsockets-test-server-common 4.0.20-2ubuntu1.1 for Ubuntu 22.04.1 LTS (jammy)

libwebsockets-test-server-common 4.0.20-2ubuntu1.1, released October 20, 2025, fixes 2 CVEs in libwebsockets-test-server-common. None of them is reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-jammy-libwebsockets-test-server-common-4.0.20-2ubuntu1.1
- Platform: Linux
- Released: Oct 20, 2025
- Priority: Routine (Closes 2 CVEs, none high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libwebsockets-test-server-common](https://patchblox.com/security/data/product/linux/libwebsockets-test-server-common.md) | Ubuntu 22.04.1 LTS (jammy) | 4.0.20-2ubuntu1.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-11677](https://patchblox.com/security/data/cve/CVE-2025-11677.md) | Routine | 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 |  |
| [CVE-2025-11678](https://patchblox.com/security/data/cve/CVE-2025-11678.md) | Routine | 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 |  |

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