Cyber Resilience

CVE-2021-36321

High

Published: 20 November 2021

Published
20 November 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0039 60.2th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-36321 is a high-severity Improper Input Validation (CWE-20) vulnerability in Dell X1008P Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 39.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Dell Networking X-Series firmware versions prior to 3.0.1.8 contain an improper input validation vulnerability. A remote unauthenticated attacker may potentially exploit this vulnerability by sending specially crafted data to trigger a denial of service.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

dell
x1008p firmware
≤ 3.0.1.8
dell
x1018p firmware
≤ 3.0.1.8
dell
x1026p firmware
≤ 3.0.1.8
dell
x1052p firmware
≤ 3.0.1.8
dell
x4012 firmware
≤ 3.0.1.8
dell
x1008 firmware
≤ 3.0.1.8
dell
x1018 firmware
≤ 3.0.1.8
dell
x1026 firmware
≤ 3.0.1.8
dell
x1052 firmware
≤ 3.0.1.8

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-20

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

References