How severe is CVE-2021-45421?

CVE-2021-45421 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-45421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45421?

CVE-2021-45421 affects Emerson Dixell Xweb-500 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45421?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-45421 published?

CVE-2021-45421 was published on 2022-02-14 and last updated on 2026-07-05.

CVE-2021-45421

CVE-2021-45421 is a high-severity vulnerability in Emerson Dixell Xweb-500 Firmware with a CVSS 3.x base score of 7.5. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Emerson Dixell Xweb-500 Firmware
Published: 2022-02-14
Last modified: 2026-07-05

Description

Emerson Dixell XWEB-500 products are affected by information disclosure via directory listing. A potential attacker can use this misconfiguration to access all the files in the remote directories. Note: the product has not been supported since 2018 and should be removed or replaced.

Frequently asked questions

What is CVE-2021-45421?: Emerson Dixell XWEB-500 products are affected by information disclosure via directory listing. A potential attacker can use this misconfiguration to access all the files in the remote directories. Note: the product has not been supported since 2018 and should be removed or replaced.
How severe is CVE-2021-45421?: CVE-2021-45421 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-45421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45421?: CVE-2021-45421 affects Emerson Dixell Xweb-500 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-45421 published?: CVE-2021-45421 was published on 2022-02-14 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:o:emerson:dixell_xweb-500_firmware:-:*:*:*:*:*:*:*

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