CVE-2025-54400: Planet WGR-500 · Stack-based Buffer Overflow
Affects Planet WGR-500Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 7 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
AI-suggested
Since no official patches are currently available, European organizations should implement the following mitigations: 1) Immediately isolate or replace Planet WGR-500 devices running vulnerable firmware versions, especially in critical network segments. 2) Restrict network access to the router’s management interface by implementing strict firewall rules, allowing only trusted IP addresses or management VLANs. 3) Employ network intrusion detection/prevention systems (IDS/IPS) with signatures or anomaly detection capable of identifying suspicious HTTP requests targeting the formPingCmd functionality. 4) Monitor network traffic for unusual ping command patterns or unexpected HTTP requests to the router’s web interface. 5) Disable or restrict the vulnerable formPingCmd feature if possible via configuration changes. 6) Maintain rigorous network segmentation to limit lateral movement from compromised devices. 7) Engage with the vendor for firmware updates and apply patches promptly once available. 8) Conduct regular vulnerability assessments and penetration testing focusing on network infrastructure devices to detect similar issues proactively.
Description
Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to stack-based buffer overflow. An attacker can send a series of HTTP requests to trigger these vulnerabilities.This buffer overflow is related to the `counts` request parameter for composing the `"ping -c <counts> <ipaddr> 2>&1 > %s &"` string.