Is CVE-2021-1499 in the CISA KEV catalog?

No. CVE-2021-1499 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-1499?

CVE-2021-1499 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-1499?

CVE-2021-1499 has an EPSS score of 80.43% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-1499?

Upgrade hyperflex hx data platform to 4.5(2a) or later.

CVE & CISA-KEV Catalog

CVE-2021-1499

MEDIUMEPSS 100th pctl

5.3

CVSS v3

NVD

Description

A vulnerability in the web-based management interface of Cisco HyperFlex HX Data Platform could allow an unauthenticated, remote attacker to upload files to an affected device. This vulnerability is due to missing authentication for the upload function. An attacker could exploit this vulnerability by sending a specific HTTP request to an affected device. A successful exploit could allow the attacker to upload files to the affected device with the permissions of the tomcat8 user.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

hyperflex hx data platformNVD

Affected:>= 4.5, < 4.5(2a)Fixed in:4.5(2a)CVE-2021-1499derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

80.43%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Exploit1

packetstormsecurity.com

Vendor Advisory1

tools.cisco.com

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2025-3248	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.