CVE-2025-54399: 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 55% 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
1. Immediate mitigation should include restricting access to the management interface of Planet WGR-500 devices to trusted networks only, using network segmentation and firewall rules. 2. Disable or restrict the vulnerable formPingCmd functionality if possible through device configuration. 3. Monitor network traffic for unusual HTTP requests targeting the 'ipaddr' parameter or abnormal ping command patterns. 4. Implement intrusion detection/prevention systems (IDS/IPS) signatures tailored to detect exploitation attempts of this buffer overflow. 5. Regularly audit and inventory network devices to identify all Planet WGR-500 routers and verify firmware versions. 6. Engage with the vendor for firmware updates or patches; if unavailable, consider replacing affected devices with more secure alternatives. 7. Employ network-level anomaly detection to identify potential post-exploitation activities. 8. Enforce strict access controls and multi-factor authentication on device management interfaces to limit attacker foothold. 9. Conduct employee awareness training to recognize signs of network compromise related to device exploitation.
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 `ipaddr` request parameter for composing the `"ping -c <counts> <ipaddr> 2>&1 > %s &"` string.