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Fencer Intel
critical 9.8

CVE-2016-5228 in the critical feed json

Stack-based buffer overflow in the PlayMacro function in ObjectXMacro.ObjectXMacro in WdMacCtl.ocx in Micro Focus Rumba 9.x before 9.3 HF 1…

published 2016-07-03 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6179

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
15.1%
EPSS 15.1% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

Stack-based buffer overflow in the PlayMacro function in ObjectXMacro.ObjectXMacro in WdMacCtl.ocx in Micro Focus Rumba 9.x before 9.3 HF 11997 and 9.4.x before 9.4 HF 12815 allows remote attackers to execute arbitrary code via a long MacroName argument. NOTE: some references mention CVE-2016-5226 but that is not a correct ID for any Rumba vulnerability.

Timeline

  1. Published
  2. First public exploit (EDB-40649)

Exploit prediction

15.12% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-40649 Micro Focus Rumba 9.3 - ActiveX Stack Buffer Overflow (PoC) dos, 2016-10-31

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 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

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

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.