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Fencer Vulns
critical 9.8

CVE-2018-14496 json

Vivotek FD8136 devices allow remote memory corruption and remote code execution because of a stack-based buffer overflow, related to sprint…

published 2019-07-10 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-6412

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

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

Exploit prediction

4.06% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • vdalabs.com https://www.vdalabs.com/2018/07/23/professional-iot-hacking-series-target-selection-firmware-analysis/ referenced PoC, tagged "exploit" by a source, unverified
  • vdalabs.com https://www.vdalabs.com/2018/11/29/professional-iot-hacking-series-hunting-remote-memory-corruption/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.