CVE-2021-4105
Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.86% probability · 58th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-755
- Affected
- bg-tek/coslat bx5s1d3 firmware · bg-tek/coslat bx5s1d4 firmware · bg-tek/coslat bx5s1d5 firmware · bg-tek/coslat rm1ds1000 firmware · bg-tek/coslat rm2ds2000 firmware · bg-tek/coslat rm2s200 firmware · bg-tek/coslat rm3s300 firmware · bg-tek/coslat rm4s500 firmware
- Source
- iletisim@usom.gov.tr
EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.htmlVendor Advisory
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0108
- https://www.usom.gov.tr/bildirim/tr-23-0108Third Party Advisory
- http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.htmlVendor Advisory
- https://www.usom.gov.tr/bildirim/tr-23-0108Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.