CVE-2007-3347: The D-Link DPH-540/DPH-541 phone accepts SIP INVITE messages that are not from the Call Server's IP address, w

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HIGH 7.8MITIGATEMITIGATE

CVE-2007-3347 is a high-severity flaw (CVSS 7.8) affecting dph-540, dph-541. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The D-Link DPH-540/DPH-541 phone accepts SIP INVITE messages that are not from the Call Server's IP address, which allows remote attackers to engage in arbitrary SIP communication with the phone, as demonstrated by communication with forged caller ID.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	1.3% (top 31%)
CISA exploited list	No
Published	2007-06-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: d-link

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-06-22 18:30 UTCPublished CVE record published
2026-06-16 22:41 UTCUpdated Record last modified

d-link dph-540 MITIGATE

Affected: 1.00.03 · 1.00.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.00.03

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

d-link dph-541 MITIGATE

Affected: 1.00.03 · 1.00.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.00.03

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

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-2007-3347?

dph-540: mitigate or apply the listed mitigation; dph-541: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-3347 being exploited?

CVE-2007-3347 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-2007-3347 affect?

CVE-2007-3347 affects dph-540, dph-541. Severity is high (CVSS 7.8). The D-Link DPH-540/DPH-541 phone accepts SIP INVITE messages that are not from the Call Server's IP address, which allows remote attackers to engage in arbitrary SIP communication with the phone, as demonstrated by communication with forged

How urgent is CVE-2007-3347?

Priority 45/100. High severity

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2007-3348 HIGH 7.8 MITIGATE MITIGATE The D-Link DPH-540/DPH-541 phone allows remote attackers to cause a denial of service (device outage) via a ma

References

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