CVE-2021-4105

Unauthenticated Remote Code Execution on COSLAT Firewall

State: Published
Severity: 9.8 Critical
Published: Feb 24, 2023
Updated: May 18, 2026
Reserved: Dec 13, 2021

Description

Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.

This issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	TR-CERT

Weaknesses

CWE-755 Improper Handling of Exceptional Conditions

Affected Products

Product	Versions
COSLAT FirewallBG-TEK	5.24.0.r.20180630 to before 5.24.0.r.20210727Affected

References

http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.htmlvendor-advisory
https://www.usom.gov.tr/bildirim/tr-23-0108government-resourcebroken-link
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0108government-resource

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