HOMEVULNERABILITIESCVE-2019-1786
MEDIUM

CVE-2019-1786

CWE-20Published: April 8, 2019· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and 0.101.0 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of proper data handling mechanisms within the device buffer while indexing remaining file data on an affected device. An attacker could exploit this vulnerability by sending crafted PDF files to an affected device. A successful exploit could allow the attacker to cause an out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

NVD Source

Technical Analysis

CVE-2019-1786 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

clamav1 product(s)
clamav
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

ADVISORYhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12149
ADVISORYhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12168
ADVISORYhttps://security.gentoo.org/glsa/201904-12
ADVISORYhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12149
ADVISORYhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12168
ADVISORYhttps://security.gentoo.org/glsa/201904-12

All References (6)

→
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12149Issue Tracking · Mailing List · Third Party Advisory
→
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12168Issue Tracking · Mailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201904-12Third Party Advisory
→
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12149Issue Tracking · Mailing List · Third Party Advisory
→
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12168Issue Tracking · Mailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201904-12Third Party Advisory

Quick Facts

CVE IDCVE-2019-1786
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedApr 8, 2019

Related CVEs (CWE-20)

CVE-2008-4329
10.0
CVE-2008-0251
10.0
CVE-2007-4915
10.0
CVE-2021-23279
10.0
CVE-2011-0923
10.0
CVE-2008-4428
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-1786 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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