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Fencer Vulns
high 7.5

CVE-2017-1084 in the critical feed json

In FreeBSD before 11.2-RELEASE, multiple issues with the implementation of the stack guard-page reduce the protections afforded by the guar…

published 2018-09-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-10100

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
15.3%
EPSS 15.3% chance of exploitation in 30 days, percentile 96%
public exploits
2
Exploit-DB

Summary

In FreeBSD before 11.2-RELEASE, multiple issues with the implementation of the stack guard-page reduce the protections afforded by the guard-page. This results in the possibility a poorly written process could be cause a stack overflow.

Patch / fix

  • freebsd freebsd 11.2

Timeline

  1. First public exploit (EDB-42278)
  2. Published

Exploit prediction

15.34% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-42278 FreeBSD - 'FGPE' Stack Clash (PoC) dos, 2017-06-28
  • EDB-42277 FreeBSD - 'FGPU' Stack Clash (PoC) dos, 2017-06-28
  • qualys.com https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • FreeBSD FreeBSD

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.