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Vulnerability record · CVE-2016-10195 · published 15 March 2017

CVE-2016-10195: Libevent project libevent out-of-bounds read vulnerability

Libevent Project · Libevent

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 out-of-bounds stack read.

9.8 CVSS 3.1 Critical EPSS 6.7% · top 6.3% CWE-125 · Out-of-bounds read
9.8CVSS 3.1 base score, v2 7.5
6.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
24References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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 out-of-bounds stack read.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2017/dsa-3789 Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/31/17 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/02/7 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/96014 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038320 Broken LinkThird Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:1104 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1201 Third Party Advisory
https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog Release NotesThird Party Advisory
https://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d PatchThird Party Advisory
https://github.com/libevent/libevent/issues/317 ExploitIssue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/201705-01 Third Party Advisory
http://www.debian.org/security/2017/dsa-3789 Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/31/17 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/02/7 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/96014 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038320 Broken LinkThird Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:1104 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1201 Third Party Advisory
https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog Release NotesThird Party Advisory
https://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d PatchThird Party Advisory
https://github.com/libevent/libevent/issues/317 ExploitIssue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/201705-01 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-10195), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.