CVE-2025-44635Network attack vector

Root command execution via crafted management requests

Published Jun 20, 2025 · Updated Jun 24, 2025

OS command injection in H3C ERG2 and GR router firmware allows remote attackers to execute arbitrary commands as root without authentication. Crafted text in a request URL or message header bypasses authentication, after which ACL and user-group fields pass attacker-controlled commands for execution. The management service must be reachable; H3C states that remote Web and Telnet management are disabled by default, and successful exploitation grants complete device control.

CVSS severity9.8
Critical
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

OS command injection in H3C ERG2 and GR router firmware allows remote attackers to execute arbitrary commands as root without authentication. Crafted text in a request URL or message header bypasses authentication, after which ACL and user-group fields pass attacker-controlled commands for execution. The management service must be reachable; H3C states that remote Web and Telnet management are disabled by default, and successful exploitation grants complete device control.

The record

CVE
CVE-2025-44635
Published
Jun 20, 2025
Updated
Jun 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2025Record 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

9.8CISA-ADPCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

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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