CVE-2025-70161: EDIMAX BR-6208AC V2_1.02 is vulnerable to Command Injection

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CRITICAL 9.8REMOTEMITIGATE

CVE-2025-70161 is a critical-severity flaw (CVSS 9.8) affecting br-6208ac firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

EDIMAX BR-6208AC V2_1.02 is vulnerable to Command Injection. This arises because the pppUserName field is directly passed to a shell command via the system() function without proper sanitization. An attacker can exploit this by injecting malicious commands into the pppUserName field, allowing arbitrary code execution.

Why this priority

Critical severity
EPSS top 2%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	27.1% (top 2%)
CISA exploited list	No
Weakness	CWE-77
Published	2026-01-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: edimax

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-09 17:15 UTCPublished CVE record published
2026-06-17 10:03 UTCUpdated Record last modified

edimax br-6208ac firmware MITIGATE

Affected: 1.03

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.03

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 ELN · fwupd-efi · FIXED · 1.9-3.eln159 · FEDORA-2026-44fd42db42 · source

sudo dnf upgrade --advisory=FEDORA-2026-44fd42db42

Fedora 46 · crest · FIXED · 3.0.2-1.fc46 · FEDORA-2026-b49adefa8f · source

sudo dnf upgrade --advisory=FEDORA-2026-b49adefa8f

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-2025-70161?

br-6208ac firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-70161 being exploited?

CVE-2025-70161 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-2025-70161 affect?

CVE-2025-70161 affects br-6208ac firmware. Severity is critical (CVSS 9.8). EDIMAX BR-6208AC V2_1.02 is vulnerable to Command Injection. This arises because the pppUserName field is directly passed to a shell command via the system() function without proper sanitization. An attacker can exploit this by injecting ma

How urgent is CVE-2025-70161?

Priority 72/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-1972 MEDIUM 5.3 UPGRADE A vulnerability was found in Edimax BR-6208AC 2_1.02
CVE-2025-15258 LOW 3.5 MITIGATE A weakness has been identified in Edimax BR-6208AC 1.02/1.03
CVE-2025-15257 HIGH 7.3 MITIGATE A security flaw has been discovered in Edimax BR-6208AC 1.02/1.03
CVE-2025-15256 HIGH 7.3 MITIGATE A vulnerability was identified in Edimax BR-6208AC 1.02/1.03
CVE-2025-14910 MEDIUM 4.3 MITIGATE A vulnerability was detected in Edimax BR-6208AC 1.02

References

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