HOMEVULNERABILITIESCVE-2017-12380
HIGH

CVE-2017-12380

CWE-476Published: January 26, 2018· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms in mbox.c during certain mail parsing functions of the ClamAV software. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. An exploit could trigger a NULL pointer dereference condition when ClamAV scans the malicious email, which may result in a DoS condition.

NVD Source

Technical Analysis

CVE-2017-12380 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

clamav1 product(s)
clamav
Debian1 product(s)
debian linux
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://blog.clamav.net/2018/01/clamav-0993-has-been-released.html
ADVISORYhttps://bugzilla.clamav.net/show_bug.cgi?id=11945
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/01/msg00035.html
ADVISORYhttp://blog.clamav.net/2018/01/clamav-0993-has-been-released.html
ADVISORYhttps://bugzilla.clamav.net/show_bug.cgi?id=11945
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/01/msg00035.html

All References (10)

→
http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes · Vendor Advisory
→
https://bugzilla.clamav.net/show_bug.cgi?id=11945Exploit · Issue Tracking · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List · Third Party Advisory
→
https://usn.ubuntu.com/3550-1/
→
https://usn.ubuntu.com/3550-2/
→
http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes · Vendor Advisory
→
https://bugzilla.clamav.net/show_bug.cgi?id=11945Exploit · Issue Tracking · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List · Third Party Advisory
→
https://usn.ubuntu.com/3550-1/
→
https://usn.ubuntu.com/3550-2/

Quick Facts

CVE IDCVE-2017-12380
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-476
CISA KEVNo
Affected2 vendor(s)
PublishedJan 26, 2018

Related CVEs (CWE-476)

CVE-2010-2495
10.0
CVE-2022-36648
10.0
CVE-2017-7614
9.8
CVE-2015-8787
9.8
CVE-2016-3821
9.8
CVE-2015-0573
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-12380 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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