HOMEVULNERABILITIESCVE-2018-14496
CRITICAL

CVE-2018-14496

CWE-787Published: July 10, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Vivotek FD8136 devices allow remote memory corruption and remote code execution because of a stack-based buffer overflow, related to sprintf, vlocal_buff_4326, and set_getparam.cgi. NOTE: The vendor has disputed this as a vulnerability and states that the issue does not cause a web server crash or have any other affect on it's performance

NVD Source

Technical Analysis

CVE-2018-14496 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

vivotek2 product(s)
fd8136 firmwarefd8136
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://www.vdalabs.com/2018/07/23/professional-iot-hacking-series-target-selection-firmware-analysis/
ADVISORYhttps://www.vdalabs.com/2018/11/29/professional-iot-hacking-series-hunting-remote-memory-corruption/
ADVISORYhttps://www.vdalabs.com/2018/07/23/professional-iot-hacking-series-target-selection-firmware-analysis/
ADVISORYhttps://www.vdalabs.com/2018/11/29/professional-iot-hacking-series-hunting-remote-memory-corruption/

All References (4)

→
https://www.vdalabs.com/2018/07/23/professional-iot-hacking-series-target-selection-firmware-analysis/Exploit · Third Party Advisory
→
https://www.vdalabs.com/2018/11/29/professional-iot-hacking-series-hunting-remote-memory-corruption/Exploit · Third Party Advisory
→
https://www.vdalabs.com/2018/07/23/professional-iot-hacking-series-target-selection-firmware-analysis/Exploit · Third Party Advisory
→
https://www.vdalabs.com/2018/11/29/professional-iot-hacking-series-hunting-remote-memory-corruption/Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2018-14496
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedJul 10, 2019

Related CVEs (CWE-787)

CVE-2018-3991
10.0
CVE-2018-2913
10.0
CVE-2004-1287
10.0
CVE-2004-0978
10.0
CVE-2012-3957
10.0
CVE-2015-5096
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-14496 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. CVE data is provided under the NVD usage policy.
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