CVE-2020-11599Network attack vector

SMTP credential disclosure via GetDistributedPOP3

Published Apr 6, 2020 · Updated Aug 4, 2024

Information disclosure in CIPPlanner CIPAce 6.80 Build 2016031401 allows remote attackers to obtain the SMTP user's credentials. The unauthenticated GetDistributedPOP3 operation returns the configured SMTP username and password; published sources do not disclose the underlying code path. Network access to the operation is sufficient, and the documented consequence is limited to disclosure of the configured SMTP account credentials.

CVSS severity7.5
High
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in CIPPlanner CIPAce 6.80 Build 2016031401 allows remote attackers to obtain the SMTP user's credentials. The unauthenticated GetDistributedPOP3 operation returns the configured SMTP username and password; published sources do not disclose the underlying code path. Network access to the operation is sufficient, and the documented consequence is limited to disclosure of the configured SMTP account credentials.

The record

CVE
CVE-2020-11599
Published
Apr 6, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 2020CVE 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

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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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-306Missing Authentication for Critical Function
T1552Unsecured Credentials

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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