CVE-2025-25896: A buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01 via the destination, netmask, and gate

Routine

MEDIUM 5.7MITIGATE

CVE-2025-25896 is a medium-severity flaw (CVSS 5.7) affecting dsl-3782 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01 via the destination, netmask, and gateway parameters. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.7 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-121
Published	2025-02-18
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

2025-02-18 22:15 UTCPublished CVE record published
2026-06-17 09:01 UTCUpdated Record last modified

dlink dsl-3782 firmware MITIGATE

Affected: 1.01

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.01

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-2025-25896?

dsl-3782 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-25896 being exploited?

CVE-2025-25896 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-2025-25896 affect?

CVE-2025-25896 affects dsl-3782 firmware. Severity is medium (CVSS 5.7). A buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01 via the destination, netmask, and gateway parameters. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.

How urgent is CVE-2025-25896?

Priority 30/100. No elevated risk signals yet.

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2025-25895 HIGH 8.0 MITIGATE An OS command injection vulnerability was discovered in D-Link DSL-3782 v1.01 via the public_type parameter
CVE-2025-25894 HIGH 8.0 MITIGATE An OS command injection vulnerability was discovered in D-Link DSL-3782 v1.01 via the samba_wg and samba_nbn p
CVE-2025-25893 HIGH 8.0 MITIGATE An OS command injection vulnerability was discovered in D-Link DSL-3782 v1.01 via the inIP, insPort, inePort,
CVE-2025-25892 MEDIUM 5.7 MITIGATE A buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01 via the sstartip, sendip, dstartip, an
CVE-2025-25891 MEDIUM 5.7 MITIGATE A buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01, triggered by the destination, netmask

References

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