SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-5267

Cobham Sea Tel 121 build 222701 devices allow remote attackers to bypass authentication via a direct request to MenuDealerGx.html, MenuDealer.html, MenuEuNCGx.html, MenuEuNC.html, MenuSysGx.html, or MenuSys.html.

CRITICAL 9.8EPSS 2.54%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Cobham Sea Tel 121 build 222701 devices allow remote attackers to bypass authentication via a direct request to MenuDealerGx.html, MenuDealer.html, MenuEuNCGx.html, MenuEuNC.html, MenuSysGx.html, or MenuSys.html.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.54% probability · 85th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
cobham/sea tel 121 firmware
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 2.54%27 October 202627 October 2026

EPSS 2.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.