CVE-2022-25420Public exploitNetwork attack vector

Arbitrary code execution via CRLF response splitting

Published Mar 29, 2022 · Updated Aug 3, 2024

CRLF injection in NTT Resonant goo blog App Web Application 1.0 allows remote attackers to execute arbitrary code via a crafted HTTP request. The blog.goo.ne.jp portal path decodes percent-encoded carriage-return and line-feed bytes and permits an attacker-chosen HTTP response header. Exploitation requires only a remote request to the public portal; the published proof of concept demonstrates response splitting, while code execution is asserted but not demonstrated.

CVSS severity9.8
Critical
EPSS probability2.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CRLF injection in NTT Resonant goo blog App Web Application 1.0 allows remote attackers to execute arbitrary code via a crafted HTTP request. The blog.goo.ne.jp portal path decodes percent-encoded carriage-return and line-feed bytes and permits an attacker-chosen HTTP response header. Exploitation requires only a remote request to the public portal; the published proof of concept demonstrates response splitting, while code execution is asserted but not demonstrated.

The record

CVE
CVE-2022-25420
Published
Mar 29, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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

7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NVDCVSS: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')
T1190Exploit Public-Facing Application

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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