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CVE-2021-4258

24
FAUCET Score

CVE-2021-4258 is a high-severity vulnerability in the whohas_project whohas package, allowing for the cleartext transmission of sensitive information due to improper handling by the Package Information Handler. This remote attack, rated 7.5 CVSS, could lead to a high impact on confidentiality. While the existence of this vulnerability is still debated and most sources redirect to encrypted sites, a patch (667c3e2e9178f15c23d7918b5db25cd0792c8472) is recommended. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021-11-01CPE matchmatch criteria
cpe:2.3:a:whohas_project:whohas:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.7LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 11th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / whohas/whohas/commit/667c3e2e9178f15c23d7918b5db25cd0792c8472
PatchThird Party Advisory
vuldb.com
Permissions RequiredThird Party AdvisoryVDB Entry