CVE-2025-48826: A format string vulnerability exists in the formPingCmd functionality of Planet WGR-500 v1.3411b190912

This month

HIGH 8.8MITIGATE

CVE-2025-48826 is a high-severity flaw (CVSS 8.8) affecting wgr-500 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A format string vulnerability exists in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to memory corruption. An attacker can send a series of HTTP requests to trigger this vulnerability.

Why this priority

High severity
EPSS top 6%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	7.2% (top 6%)
CISA exploited list	No
Weakness	CWE-134
Published	2025-10-07
Last modified	2026-10-08

Publisher (CNA): Talos · Vendor: planet

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-07 14:15 UTCPublished CVE record published
2026-10-08 22:10 UTCUpdated Record last modified

planet wgr-500 firmware MITIGATE

Affected: 1.3411b190912

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3411b190912

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · wordpress · FIXED · 7.1.4-1.fc46 · FEDORA-2026-907394725e · source

sudo dnf upgrade --advisory=FEDORA-2026-907394725e

Fedora ELN · rhc · FIXED · 0.3.15-1.eln159 · FEDORA-2026-1cd9f35750 · source

sudo dnf upgrade --advisory=FEDORA-2026-1cd9f35750

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-48826?

wgr-500 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-48826 being exploited?

CVE-2025-48826 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-48826 affect?

CVE-2025-48826 affects wgr-500 firmware. Severity is high (CVSS 8.8). A format string vulnerability exists in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to memory corruption. An attacker can send a series of HTTP requests to trigger thi

How urgent is CVE-2025-48826?

Priority 59/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2025-54403 HIGH 8.8 MITIGATE Multiple OS command injection vulnerabilities exist in the swctrl functionality of Planet WGR-500 v1.3411b1909
CVE-2025-54404 HIGH 8.8 MITIGATE Multiple OS command injection vulnerabilities exist in the swctrl functionality of Planet WGR-500 v1.3411b1909
CVE-2025-54405 HIGH 8.8 MITIGATE Multiple OS command injection vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411
CVE-2025-54406 HIGH 8.8 MITIGATE Multiple OS command injection vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411
CVE-2025-54399 HIGH 8.8 MITIGATE Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500

References

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