CVE-2021-40856
HighPublic PoC
Published: 13 December 2021
Published
13 December 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.8810
99.5th percentile
Risk Priority
68
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-40856 is a high-severity Use of Incorrectly-Resolved Name or Reference (CWE-706) vulnerability in Auerswald Comfortel 3600 Ip Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 0.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-28012
Vulnerability details
Auerswald COMfortel 1400 IP and 2600 IP before 2.8G devices allow Authentication Bypass via the /about/../ substring.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
auerswald
comfortel 3600 ip firmware
≤ 2.8f
auerswald
comfortel 2600 ip firmware
≤ 2.8f
auerswald
comfortel 1400 ip firmware
≤ 2.8f
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.