CVE-2021-45427

CVE-2021-45427 is a critical-severity vulnerability in Emerson Xweb300d Evo Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Description

Emerson XWEB 300D EVO 3.0.7--3ee403 is affected by: unauthenticated arbitrary file deletion due to path traversal. An attacker can browse and delete files without any authentication due to incorrect access control and directory traversal.

Frequently asked questions

What is CVE-2021-45427?
Emerson XWEB 300D EVO 3.0.7--3ee403 is affected by: unauthenticated arbitrary file deletion due to path traversal. An attacker can browse and delete files without any authentication due to incorrect access control and directory traversal.
How severe is CVE-2021-45427?
CVE-2021-45427 has a CVSS 3.x base score of 9.8, 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 high.
Is CVE-2021-45427 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45427?
CVE-2021-45427 affects Emerson Xweb300d Evo Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45427?
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-2021-45427 published?
CVE-2021-45427 was published on 2021-12-30 and last updated on 2026-06-17.

References

Affected products (1)

Other CWE-22 (Path Traversal) vulnerabilities

Browse all CWE-22 (Path Traversal) vulnerabilities →