CVE-2025-8938: A vulnerability was found in TOTOLINK N350R 1.2.3-B20130826

Routine

MEDIUM 6.3MITIGATE

CVE-2025-8938 is a medium-severity flaw (CVSS 6.3) affecting n350r firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in TOTOLINK N350R 1.2.3-B20130826. This issue affects the function formSysTel of the file /boafrm/formSysTel of the component Telnet Service. The manipulation of the argument TelEnabled leads to backdoor. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-912
Published	2025-08-14
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: totolink

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

Am I affected?

Timeline

2025-08-14 05:15 UTCPublished CVE record published
2026-06-17 10:07 UTCUpdated Record last modified

totolink n350r firmware MITIGATE

Affected: 1.2.3-b20130826

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.3-b20130826

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.

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-2025-8938?

n350r firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-8938 being exploited?

CVE-2025-8938 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-2025-8938 affect?

CVE-2025-8938 affects n350r firmware. Severity is medium (CVSS 6.3). A vulnerability was found in TOTOLINK N350R 1.2.3-B20130826. This issue affects the function formSysTel of the file /boafrm/formSysTel of the component Telnet Service. The manipulation of the argument TelEnabled leads to backdoor. The attac

How urgent is CVE-2025-8938?

Priority 29/100. No elevated risk signals yet.

Related CVEs

CVE-2025-8937 MEDIUM 6.3 MITIGATE A vulnerability has been found in TOTOLINK N350R 1.2.3-B20130826

References

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