CVE-2025-7553: A vulnerability classified as critical has been found in D-Link DIR-818LW up to 20191215

Q: How do I fix CVE-2025-7553?

dir-818lw firmware: upgrade to 20191215. Exact commands for each OS are on this page.

Q: Is CVE-2025-7553 being exploited?

CVE-2025-7553 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-7553 affect?

CVE-2025-7553 affects dir-818lw firmware. Severity is medium (CVSS 4.7). A vulnerability classified as critical has been found in D-Link DIR-818LW up to 20191215. This affects an unknown part of the component System Time Page. The manipulation of the argument NTP Server leads to os command injection. It is possi

Q: How urgent is CVE-2025-7553?

Priority 39/100. EPSS top 10%: very likely to be exploited

Routine

MEDIUM 4.7UPGRADE

CVE-2025-7553 is a medium-severity flaw (CVSS 4.7) affecting dir-818lw firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as critical has been found in D-Link DIR-818LW up to 20191215. This affects an unknown part of the component System Time Page. The manipulation of the argument NTP Server leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Why this priority

EPSS top 10%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Weakness	CWE-77, CWE-78
Published	2025-07-14
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: dlink

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

Am I affected?

Timeline

2025-07-14 00:15 UTCPublished CVE record published
2026-06-17 10:05 UTCUpdated Record last modified

dlink dir-818lw firmware UPGRADE

Affected: < 20191215

Fixed in: 20191215

Safe to downgrade to: no unaffected older release

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-2025-7553?

dir-818lw firmware: upgrade to 20191215. Exact commands for each OS are on this page.

Is CVE-2025-7553 being exploited?

CVE-2025-7553 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-2025-7553 affect?

CVE-2025-7553 affects dir-818lw firmware. Severity is medium (CVSS 4.7). A vulnerability classified as critical has been found in D-Link DIR-818LW up to 20191215. This affects an unknown part of the component System Time Page. The manipulation of the argument NTP Server leads to os command injection. It is possi

How urgent is CVE-2025-7553?

Priority 39/100. EPSS top 10%: very likely to be exploited

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2025-9003 LOW 3.5 MITIGATE A vulnerability has been found in D-Link DIR-818LW 1.04

References

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