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CVE-2017-6418

16
FAUCET Score

CVE-2017-6418 describes an out-of-bounds read vulnerability in ClamAV version 0.99.2, specifically within the libclamav/message.c component, affecting the clamav product. This medium-severity vulnerability (CVSS 5.5) can be triggered remotely by an unauthenticated attacker sending a specially crafted e-mail, leading to a denial of service. While the attack complexity is low, user interaction is required, and the primary impact is availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.99.2CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.99.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.42%
Probability of exploitation in next 30 days
EPSS Percentile
70.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 80th percentile among its peer group of 5,760 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

bugzilla.clamav.net / show_bug.cgi
Permissions Required
github.com / varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_email_crash.md
Third Party Advisory
github.com / vrtadmin/clamav-devel/commit/586a5180287262070637c8943f2f7efd652e4a2c
Issue TrackingPatchThird Party Advisory
security.gentoo.org / glsa/201804-16
securityfocus.com / bid/100154