CVE-2021-45081Network attack vector

Sensitive-data disclosure via cleartext HTTP entry points

Published Feb 20, 2022 · Updated Aug 4, 2024

Cleartext transmission in Cobbler 3.3.1 and earlier allows attackers to read sensitive data from HTTP server traffic. Multiple Cobbler server entry points send requests over HTTP without transport encryption, exposing their contents to network interception. An attacker must be positioned to observe the traffic; the published impact is disclosure only, with no reported ability to alter data or interrupt service.

CVSS severity5.9
Medium
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext transmission in Cobbler 3.3.1 and earlier allows attackers to read sensitive data from HTTP server traffic. Multiple Cobbler server entry points send requests over HTTP without transport encryption, exposing their contents to network interception. An attacker must be positioned to observe the traffic; the published impact is disclosure only, with no reported ability to alter data or interrupt service.

The record

CVE
CVE-2021-45081
Published
Feb 20, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:N
5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
6.8SUSECVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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