CVE-2021-40856
HIGH
7.5
CVSS Score
Published: December 13, 2021 at 03:20 AM UTC
Updated: June 17, 2026 at 04:07 AM UTC
6 products affected across 1 vendorComfortel 2600 IP FirmwareComfortel 1400 IP FirmwareComfortel 3600 IP Firmware
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 50%
Description
Auerswald COMfortel 1400 IP and 2600 IP before 2.8G devices allow Authentication Bypass via the /about/../ substring.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
80%
All versions
80%
All versions
80%
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (3)
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/165162/Auerswald-COMfortel-1400-2600-3600-IP-2.8F-Authentication-Bypass.htmlx_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.redteam-pentesting.de/en/advisories/-advisories-publicised-vulnerability-analysesx_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.redteam-pentesting.de/en/advisories/rt-sa-2021-004/-auerswald-comfortel-1400-2600-3600-ip-authentication-bypassCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-706
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card