CVE-2021-4258

Name: CVE-2021-4258
Creator: NVD / NIST
Published: 2022-12-19T14:15:10.383+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2021-4258 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability was found in whohas. It has been rated as problematic. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

A vulnerability was found in whohas. It has been rated as problematic. This issue affects some unknown processing of the component Package Information Handler. The manipulation leads to cleartext transmission of sensitive information. The attack may be initiated remotely. The real existence of this vulnerability is still doubted at the moment. The name of the patch is 667c3e2e9178f15c23d7918b5db25cd0792c8472. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-216251. NOTE: Most sources redirect to the encrypted site which limits the possibilities of an attack.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.38%

29.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Whohas Project	Whohas	< 2021-11-01

References

https://github.com/whohas/whohas/commit/667c3e2e9178f15c23d7918b5db25cd0792c8472Patch, Third Party Advisory
https://vuldb.com/?id.216251Permissions Required, Third Party Advisory, VDB Entry
https://github.com/whohas/whohas/commit/667c3e2e9178f15c23d7918b5db25cd0792c8472Patch, Third Party Advisory
https://vuldb.com/?id.216251Permissions Required, Third Party Advisory, VDB Entry

Timeline

Published: Dec 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4258?

How severe is CVE-2021-4258?

CVE-2021-4258 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4258?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4258?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST