CVE-2026-63387 Libevent: Off-by-one stack buffer overflow in dnsname_to_labels via crafted DNS server response
| Reporter | Title | Published | Views | Family All 37 |
|---|---|---|---|---|
 | The vulnerability of the dnsname_to_labels() function in the Libevent event-driven notification library allows a attacker to cause a service failure. | 26 Aug 202600:00 | – | bdu_fstec |
 | CVE-2026-63387 affecting package libevent for versions less than 2.1.13-1 | 2 Sep 202620:43 | – | cbl_mariner |
| CVE-2026-63387 affecting package mysql for versions less than 8.0.46-2 | 2 Sep 202620:43 | – | cbl_mariner |
| CVE-2026-63387 affecting package ntp for versions less than 4.2.8p17-3 | 2 Sep 202620:43 | – | cbl_mariner |
 | CVE-2026-63387 | 20 Aug 202617:53 | – | cve |
 | [SECURITY] [DSA 6493-1] libevent security update | 11 Sep 202607:03 | – | debian |
 | CVE-2026-63387 | 20 Aug 202617:53 | – | debiancve |
 | EUVD-2026-63508 | 20 Aug 202617:53 | – | euvd |
 | [SECURITY] Fedora 44 Update: libevent-2.1.13-1.fc44 | 9 Sep 202604:51 | – | fedora |
| [SECURITY] Fedora 43 Update: libevent-2.1.13-1.fc43 | 11 Sep 202601:27 | – | fedora |
10
[
{
"vendor": "libevent",
"product": "libevent",
"versions": [
{
"version": ">= 2.2.0-alpha, < 2.2.2-alpha",
"status": "affected"
},
{
"version": "< 2.1.13",
"status": "affected"
}
]
}
]Data
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20 Aug 2026 17:53Current
CVSS 3.17
EPSS0.00416