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CVE-2005-4050: Buffer overflow in multiple Multi-Tech Systems MultiVOIP devices with firmware before x.08 allows remote attac

49
This month
HIGH 7.5MITIGATE

CVE-2005-4050 is a high-severity flaw (CVSS 7.5) affecting multivoip. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in multiple Multi-Tech Systems MultiVOIP devices with firmware before x.08 allows remote attackers to execute arbitrary code via a long INVITE field in a Session Initiation Protocol (SIP) packet.

Why this priority

  • High severity

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

Risk facts

CVSS score7.5 (High)
EPSS exploit chance3.7% (top 10%)
CISA exploited listNo
Published2005-12-07
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: multi-tech systems

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

Am I affected?

Timeline

multi-tech systems multivoip MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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-2005-4050?

multivoip: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-4050 being exploited?

CVE-2005-4050 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-2005-4050 affect?

CVE-2005-4050 affects multivoip. Severity is high (CVSS 7.5). Buffer overflow in multiple Multi-Tech Systems MultiVOIP devices with firmware before x.08 allows remote attackers to execute arbitrary code via a long INVITE field in a Session Initiation Protocol (SIP) packet.

How urgent is CVE-2005-4050?

Priority 49/100. High severity

References

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