CVE-2020-6972
In Notifier Web Server (NWS) Version 3.50 and earlier, the Honeywell Fire Web Server’s...
In Notifier Web Server (NWS) Version 3.50 and earlier, the Honeywell Fire Web Server’s authentication may be bypassed by a capture-replay attack from a web browser.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In Notifier Web Server (NWS) Version 3.50 and earlier, the Honeywell Fire Web Server’s authentication may be bypassed by a capture-replay attack from a web browser.
- Record
CVE-2020-6972- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:P/A:N - Weakness
- CWE-294
- Updated
- 2026-11-02
CVE List No score
In Notifier Web Server (NWS) Version 3.50 and earlier, the Honeywell Fire Web Server’s authentication may be bypassed by a capture-replay attack from a web browser.
- Record
CVE-2020-6972- Weakness
- CWE-294
- Updated
- 2026-11-02
EUVDEUVD-2020-28112 No score
In Notifier Web Server (NWS) Version 3.50 and earlier, the Honeywell Fire Web Server’s authentication may be bypassed by a capture-replay attack from a web browser.
- Record
EUVD-2020-28112- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4pww-fgmg-2g7r No score
In Notifier Web Server (NWS) Version 3.50 and earlier, the Honeywell Fire Web Server’s...
In Notifier Web Server (NWS) Version 3.50 and earlier, the Honeywell Fire Web Server’s authentication may be bypassed by a capture-replay attack from a web browser.
- Record
GHSA-4pww-fgmg-2g7r- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-6972 is a critical vulnerability (CVSS 9.1) in Honeywell Notifier Web Server (nws) Version 3.50 And Earlier, published March 24, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.32%, the 71st percentile. No source names a fixed version.