How severe is CVE-2004-0789?

CVE-2004-0789 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2004-0789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0789?

CVE-2004-0789 primarily affects Delegate. In total, 98 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-0789?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2004-0789 published?

CVE-2004-0789 was published on 2004-12-31 and last updated on 2026-06-16.

CVE-2004-0789

CVE-2004-0789 is a medium-severity vulnerability in Delegate with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Delegate
Published: 2004-12-31
Last modified: 2026-06-16

Description

Multiple implementations of the DNS protocol, including (1) Poslib 1.0.2-1 and earlier as used by Posadis, (2) Axis Network products before firmware 3.13, and (3) Men & Mice Suite 2.2x before 2.2.3 and 3.5.x before 3.5.2, allow remote attackers to cause a denial of service (CPU and network bandwidth consumption) by triggering a communications loop via (a) DNS query packets with localhost as a spoofed source address, or (b) a response packet that triggers a response packet.

Frequently asked questions

What is CVE-2004-0789?: Multiple implementations of the DNS protocol, including (1) Poslib 1.0.2-1 and earlier as used by Posadis, (2) Axis Network products before firmware 3.13, and (3) Men & Mice Suite 2.2x before 2.2.3 and 3.5.x before 3.5.2, allow remote attackers to cause a denial of service (CPU and network bandwidth consumption) by triggering a communications loop via (a) DNS query packets with localhost as a spoofed source address, or (b) a response packet that triggers a response packet.
How severe is CVE-2004-0789?: CVE-2004-0789 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0789?: CVE-2004-0789 primarily affects Delegate. In total, 98 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0789 published?: CVE-2004-0789 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (98)

cpe:2.3:a:delegate:delegate:7.7.0:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:7.7.1:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:7.8.0:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:7.8.1:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:7.8.2:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:7.9.11:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.3.3:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.3.4:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.4.0:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.5.0:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.9:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.9.1:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.9.2:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.9.3:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.9.4:*:*:*:*:*:*:*
cpe:2.3:a:delegate:delegate:8.9.5:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:1.0:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:1.1:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:1.2:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:1.3:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:1.4:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.0:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.1:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.2:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.3:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.4:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.5:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.6:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.7:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.8:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.9:*:*:*:*:*:*:*
cpe:2.3:a:dnrd:dnrd:2.10:*:*:*:*:*:*:*
cpe:2.3:a:don_moore:mydns:0.6:*:*:*:*:*:*:*
cpe:2.3:a:don_moore:mydns:0.7:*:*:*:*:*:*:*
cpe:2.3:a:don_moore:mydns:0.8:*:*:*:*:*:*:*
cpe:2.3:a:don_moore:mydns:0.9:*:*:*:*:*:*:*
cpe:2.3:a:don_moore:mydns:0.10.0:*:*:*:*:*:*:*
cpe:2.3:a:maradns:maradns:0.5.28:*:*:*:*:*:*:*
cpe:2.3:a:maradns:maradns:0.5.29:*:*:*:*:*:*:*
cpe:2.3:a:maradns:maradns:0.5.30:*:*:*:*:*:*:*

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