CVE-2022-47583Public exploitNetwork attack vector

Command execution via raw DECRQSS echoback

Published Oct 19, 2023 · Updated Sep 12, 2024

Terminal character injection in Mintty before 3.6.3 allows context-dependent attackers to execute commands through crafted terminal output. In do_dcs, the fallback for an unrecognized DECRQSS request passes the attacker-controlled request string to child_printf, echoing arbitrary characters into the terminal input stream. Code execution occurs when unescaped hostile content reaches the terminal and its echoed control characters are interpreted as shell input, as demonstrated through a crafted Git commit message viewed with git log.

CVSS severity9.8
Critical
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Terminal character injection in Mintty before 3.6.3 allows context-dependent attackers to execute commands through crafted terminal output. In do_dcs, the fallback for an unrecognized DECRQSS request passes the attacker-controlled request string to child_printf, echoing arbitrary characters into the terminal input stream. Code execution occurs when unescaped hostile content reaches the terminal and its echoed control characters are interpreted as shell input, as demonstrated through a crafted Git commit message viewed with git log.

The record

CVE
CVE-2022-47583
Published
Oct 19, 2023
Updated
Sep 12, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 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

9.8NIST NVDCVSS:3.1/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.004Unix Shell

Public exploit references

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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