HOMEVULNERABILITIESCVE-2019-14778
HIGH

CVE-2019-14778

CWE-416Published: August 29, 2019· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

The mkv::virtual_segment_c::seek method of demux/mkv/virtual_segment.cpp in VideoLAN VLC media player 3.0.7.1 has a use-after-free.

NVD Source

Technical Analysis

CVE-2019-14778 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
videolan1 product(s)
vlc media player
Source: NVD CPE · 3 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

PATCHhttp://git.videolan.org/?p=vlc.git&a=search&h=refs/heads/master&st=commit&s=cve-2019
PATCHhttps://www.videolan.org/security/sb-vlc308.html
PATCHhttp://git.videolan.org/?p=vlc.git&a=search&h=refs/heads/master&st=commit&s=cve-2019
PATCHhttps://www.videolan.org/security/sb-vlc308.html
ADVISORYhttps://seclists.org/bugtraq/2019/Aug/36
ADVISORYhttps://www.debian.org/security/2019/dsa-4504
ADVISORYhttps://seclists.org/bugtraq/2019/Aug/36
ADVISORYhttps://www.debian.org/security/2019/dsa-4504

All References (16)

→
http://git.videolan.org/?p=vlc.git&a=search&h=refs/heads/master&st=commit&s=cve-2019Patch · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00036.html
→
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00046.html
→
https://seclists.org/bugtraq/2019/Aug/36Mailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201909-02
→
https://usn.ubuntu.com/4131-1/
→
https://www.debian.org/security/2019/dsa-4504Third Party Advisory
→
https://www.videolan.org/security/sb-vlc308.htmlPatch · Vendor Advisory
→
http://git.videolan.org/?p=vlc.git&a=search&h=refs/heads/master&st=commit&s=cve-2019Patch · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00036.html
→
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00046.html
→
https://seclists.org/bugtraq/2019/Aug/36Mailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201909-02
→
https://usn.ubuntu.com/4131-1/
→
https://www.debian.org/security/2019/dsa-4504Third Party Advisory

Quick Facts

CVE IDCVE-2019-14778
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-416
CISA KEVNo
Affected2 vendor(s)
PublishedAug 29, 2019

Related CVEs (CWE-416)

CVE-2012-1975
10.0
CVE-2012-1974
10.0
CVE-2012-1972
10.0
CVE-2011-0982
10.0
CVE-2012-1973
10.0
CVE-2012-1976
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-14778 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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