VDB
CVE-2025-11678
CVE-2025-11678
PUBLISHED
CVSS 7.5 HIGH
Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.
EPSS 0.01% · 1.8th percentile
Risk Scores
CVSS 4.0
7.5
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS Score
0.01%
1.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| warmcat | libwebsocket | 4.0, 4.0 |
Exploit Intelligence
- CIRCL seen: CVE-2025-11678 (circl-sighting)
- CIRCL seen: CVE-2025-11678 (circl-sighting)
- CIRCL seen: CVE-2025-11678 (circl-sighting)
- https://libwebsockets.org/git/libwebsockets/commit?id=2bb9598562b37c942ba5b04bcde3f7fdf66a9d3a (circl)
- https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11678 (circl)
- data.yaml (github-poc)
- data.yaml (github-poc)
- data.yaml (github-poc)
- data.yaml (github-poc)
- data.yaml (github-poc)
Timeline
- Oct 13, 2025 CVE ID Reserved
- Oct 20, 2025 Coalition ESS Score
- Oct 20, 2025 CVE Published
- Oct 20, 2025 CVE Updated
- Oct 20, 2025 PoC Published
- Oct 21, 2025 EPSS Score
- Oct 24, 2025 Coalition ESS Score
- Oct 27, 2025 EPSS Score
- Oct 27, 2025 Coalition ESS Score
- Nov 2, 2025 EPSS Score
- Nov 2, 2025 PoC Published
- Nov 8, 2025 EPSS Score