Is CVE-2025-44653 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-44653 being exploited in the wild.

How severe is CVE-2025-44653?

High severity, with a CVSS score of 7.5, published 21 July 2025.

Is there a fix for CVE-2025-44653?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2025-44653 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2025-44653?

Check whether you run H3C Gr2200 or H3C Gr2200 Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-44653: H3C GR2200 resource exhaustion in bftpd configuration

CVE-2025-44653 · Severity: high · CVSS 7.5 · Published 2025-07-21

A configuration issue in H3C GR2200 enterprise routers allows for a denial-of-service condition. The device's file transfer service is configured to allow an unlimited number of simultaneous connections, which can be exploited to exhaust system resources. This could result in the router becoming unresponsive, disrupting network connectivity and business operations.

Vendors: H3C.

Quick answers

Is CVE-2025-44653 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-44653 being exploited in the wild.
How severe is CVE-2025-44653?: High severity, with a CVSS score of 7.5, published 21 July 2025.
Which products and versions are affected?: H3C Gr2200 MiniGR1A0V100R016.
Is there a fix for CVE-2025-44653?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-44653 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-44653?: Check whether you run H3C Gr2200 or H3C Gr2200 Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The H3C GR2200 router (firmware MiniGR1A0V100R016) contains a resource exhaustion vulnerability (CWE-400) due to an insecure default configuration in the bftpd FTP server. The 'USERLIMIT_GLOBAL' parameter in /etc/bftpd.conf is set to 0, which disables the limit on concurrent global connections. A remote, unauthenticated attacker can exploit this by initiating a large number of simultaneous FTP connections to the device. This leads to a denial-of-service (DoS) state by consuming all available system resources or connection slots, preventing legitimate administrative or network traffic.

Affected products

H3C GR2200 MiniGR1A0V100R016

Timeline

2025-07-21: disclosed
2025-07-21: advisory

References

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