CVE-2020-6972
CVE-2020-6972 is a critical-severity vulnerability in Honeywell Notifier Webserver with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-294.
Key facts
- Severity: Critical (CVSS 3.x base score 9.1)
- CVSS v2: 6.4
- EPSS exploit prediction: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-294
- Affected product: Honeywell Notifier Webserver
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-6972?
- 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.
- How severe is CVE-2020-6972?
- CVE-2020-6972 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
- Is CVE-2020-6972 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-6972?
- CVE-2020-6972 affects Honeywell Notifier Webserver. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-6972?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-6972 published?
- CVE-2020-6972 was published on 2020-03-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:honeywell:notifier_webserver:*:*:*:*:*:*:*:*
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