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Fencer Intel
high 7.8

CVE-2018-14533 json

read_tmp and write_tmp in Inteno IOPSYS allow attackers to gain privileges after writing to /tmp/etc/smb.conf because /var is a symlink to…

published 2018-07-31 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-6443

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
1
Exploit-DB

Summary

read_tmp and write_tmp in Inteno IOPSYS allow attackers to gain privileges after writing to /tmp/etc/smb.conf because /var is a symlink to /tmp.

Timeline

  1. First public exploit (EDB-45089)
  2. Published

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-45089 Inteno’s IOPSYS - (Authenticated) Local Privilege Escalation local, 2018-07-21
  • neonsea.uk https://neonsea.uk/blog/2018/07/21/tmp-to-rce.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

References

Sources

Fencer Intel 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.