CVE-2025-5912: A vulnerability was found in D-Link DIR-632 FW103B08

This month

HIGH 8.8MITIGATE

CVE-2025-5912 is a high-severity flaw (CVSS 8.8) affecting dir-632 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in D-Link DIR-632 FW103B08. It has been declared as critical. This vulnerability affects the function do_file of the component HTTP POST Request Handler. The manipulation leads to stack-based buffer overflow. The attack can be initiated 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

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	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-119, CWE-121
Published	2025-06-10
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

2025-06-10 04:15 UTCPublished CVE record published
2026-06-17 09:49 UTCUpdated Record last modified

dlink dir-632 firmware MITIGATE

Affected: 103b08

Fixed in: no fixed release known

Safe to downgrade to: a release before 103b08

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-2025-5912?

dir-632 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-5912 being exploited?

CVE-2025-5912 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-2025-5912 affect?

CVE-2025-5912 affects dir-632 firmware. Severity is high (CVSS 8.8). A vulnerability was found in D-Link DIR-632 FW103B08. It has been declared as critical. This vulnerability affects the function do_file of the component HTTP POST Request Handler. The manipulation leads to stack-based buffer overflow. The a

How urgent is CVE-2025-5912?

Priority 54/100. High severity; Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2025-6121 CRITICAL 9.8 MITIGATE A vulnerability, which was classified as critical, has been found in D-Link DIR-632 FW103B08
CVE-2025-5969 HIGH 8.8 MITIGATE A vulnerability has been found in D-Link DIR-632 FW103B08 and classified as critical

References

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