CVE-2015-7687 is a critical use-after-free vulnerability affecting OpenSMTPD versions prior to 5.7.2, including those distributed with Fedora and OpenBSD. This flaw, stemming from issues in req_ca_vrfy_smtp and req_ca_vrfy_mta, allows remote attackers to trigger a denial of service or execute arbitrary code. With a CVSS v3 score of 9.8 (Critical), it presents a high-impact, low-complexity attack vector requiring no user interaction. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 5.7.1CPE matchmatch criteria | cpe:2.3:a:openbsd:opensmtpd:*:*:*:*:*:*:*:* | ||
22CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* | ||
23CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.