CVE-2024-48271: D-Link DSL6740C v6.TR069.20211230 was discovered to use insecure default credentials for Administrator access,

This month

HIGH 8.8MITIGATE

CVE-2024-48271 is a high-severity flaw (CVSS 8.8) affecting dsl-6740c firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

D-Link DSL6740C v6.TR069.20211230 was discovered to use insecure default credentials for Administrator access, possibly allowing attackers to bypass authentication and escalate privileges on the device via a bruteforce attack.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-521
Published	2024-10-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dlink

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

Am I affected?

Timeline

2024-10-30 20:15 UTCPublished CVE record published
2026-06-17 07:58 UTCUpdated Record last modified

dlink dsl-6740c firmware MITIGATE

Affected: 6.tr069.20211230

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.tr069.20211230

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-2024-48271?

dsl-6740c firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-48271 being exploited?

CVE-2024-48271 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-2024-48271 affect?

CVE-2024-48271 affects dsl-6740c firmware. Severity is high (CVSS 8.8). D-Link DSL6740C v6.TR069.20211230 was discovered to use insecure default credentials for Administrator access, possibly allowing attackers to bypass authentication and escalate privileges on the device via a bruteforce attack.

How urgent is CVE-2024-48271?

Priority 51/100. High severity; Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2024-48272 MEDIUM 6.5 MITIGATE D-Link DSL6740C v6.TR069.20211230 was discovered to use an insecure default Wifi password, possibly allowing a

References

← Back to latest CVEs