CVE-2017-12588Network attack vector

Unspecified impact via zmq3 format strings

Published Aug 6, 2017 · Updated Dec 27, 2024

Format string injection in rsyslog before 8.28.0 allows attackers to cause unspecified impact via zmq3 description fields. imzmq3 createSocket and omzmq3 initZMQ pass each description directly as the zsocket_bind or zsocket_connect format argument rather than through a fixed %s format. Public sources do not establish how attackers can influence these configuration-derived descriptions or what concrete consequence follows.

CVSS severity9.8
Critical
EPSS probability2.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Format string injection in rsyslog before 8.28.0 allows attackers to cause unspecified impact via zmq3 description fields. imzmq3 createSocket and omzmq3 initZMQ pass each description directly as the zsocket_bind or zsocket_connect format argument rather than through a fixed %s format. Public sources do not establish how attackers can influence these configuration-derived descriptions or what concrete consequence follows.

The record

CVE
CVE-2017-12588
Published
Aug 6, 2017
Updated
Dec 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-134
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2017CVE publishedPublication date reported by the CVE source.
  2. Dec 27, 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

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String

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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