CVE-2025-44838: TOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the set

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MEDIUM 6.3MITIGATE

CVE-2025-44838 is a medium-severity flaw (CVSS 6.3) affecting cp900 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

TOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the setUploadUserData function via the FileName parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Why this priority

Public exploit reference

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	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-77
Published	2025-05-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: totolink

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

Am I affected?

Timeline

2025-05-01 15:16 UTCPublished CVE record published
2026-06-17 09:25 UTCUpdated Record last modified

totolink cp900 firmware MITIGATE

Affected: 6.3c.1144_b20190715

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.3c.1144_b20190715

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-2025-44838?

cp900 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-44838 being exploited?

CVE-2025-44838 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-2025-44838 affect?

CVE-2025-44838 affects cp900 firmware. Severity is medium (CVSS 6.3). TOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the setUploadUserData function via the FileName parameter. This vulnerability allows attackers to execute arbitrary commands via a crafte

How urgent is CVE-2025-44838?

Priority 42/100. Public exploit reference

Related CVEs

CVE-2025-44854 MEDIUM 6.3 MITIGATE TOTOLINK CP900 V6.3c.1144_B20190715 was found to contain a command injection vulnerability in the setUpgradeUb
CVE-2025-44837 MEDIUM 6.3 MITIGATE TOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the Clo
CVE-2025-44836 MEDIUM 6.3 MITIGATE TOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the set
CVE-2024-7464 MEDIUM 6.3 MITIGATE A vulnerability, which was classified as critical, has been found in TOTOLINK CP900 6.3c.566
CVE-2024-7463 HIGH 8.8 MITIGATE A vulnerability classified as critical was found in TOTOLINK CP900 6.3c.566

References

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