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Fencer Vulns
high 7.5

CVE-2020-4767 json

IBM Sterling Connect Direct for Microsoft Windows 4.7, 4.8, 6.0, and 6.1 could allow a remote attacker to cause a denial of service, caused…

published 2020-10-28 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26014

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

IBM Sterling Connect Direct for Microsoft Windows 4.7, 4.8, 6.0, and 6.1 could allow a remote attacker to cause a denial of service, caused by a buffer over-read. Bysending a specially crafted request, the attacker could cause the application to crash. IBM X-Force ID: 188906.

Patch / fix

  • ibm sterling_connect:direct 4.7.0.7, 4.8.0.3, 6.0.0.4, 6.1.0.1

Exploit prediction

1.60% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/UI:N/A:H/I:N/PR:N/AV:N/C:N/AC:L/S:U/RC:C/RL:O/E:U
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 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 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • IBM Sterling Connect Direct for Microsoft Windows

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.