Libevent is a widely embedded event-notification library that despite a narrow product focus sits deep in the software supply chain, powering network services and applications across servers, messaging systems, and infrastructure software. Its vulnerability footprint clusters around memory-access issues such as out-of-bounds reads and writes, reflecting the parsing and buffer-handling complexity inherent to an event-loop implementation that processes untrusted network data. Current severity, exploitation status, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Libevent Project over time
Signals from CVEs in this vendor scope (5 CVEs).
5 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2016-10195CRITICAL The name_parse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the label_len variable, which triggers an | Mar 15, 2017 | 9.8 | 28 | NO | NO |
CVE-2016-10197HIGH The search_make_new function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname. | Mar 15, 2017 | 7.5 | 27 | NO | NO |
CVE-2016-10196HIGH Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (segmentation fault) | Mar 15, 2017 | 7.5 | 27 | NO | NO |
CVE-2014-6272HIGH Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial | Aug 24, 2015 | 7.5 | 26 | NO | NO |
CVE-2015-6525HIGH Multiple integer overflows in the evbuffer API in Libevent 2.0.x before 2.0.22 and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibl | Aug 24, 2015 | 7.5 | 21 | NO | NO |
Signals from CVEs in this vendor scope (5 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Libevent Project.
Media articles that mention a CVE ID that affects a product developed by Libevent Project — matched by CVE ID, not by vendor name.