How severe is CVE-2005-4794?

CVE-2005-4794 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-4794 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-4794?

CVE-2005-4794 primarily affects Cisco Application And Content Networking Software. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-4794?

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

When was CVE-2005-4794 published?

CVE-2005-4794 was published on 2005-12-31 and last updated on 2026-06-16.

CVE-2005-4794

CVE-2005-4794 is a medium-severity vulnerability in Cisco Application And Content Networking Software 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: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Application And Content Networking Software
Published: 2005-12-31
Last modified: 2026-06-16

Description

Cisco IP Phones 7902/7905/7912, ATA 186/188, Unity Express, ACNS, and Subscriber Edge Services Manager (SESM) allows remote attackers to cause a denial of service (crash or instability) via a compressed DNS packet with a label length byte with an incorrect offset.

Frequently asked questions

What is CVE-2005-4794?: Cisco IP Phones 7902/7905/7912, ATA 186/188, Unity Express, ACNS, and Subscriber Edge Services Manager (SESM) allows remote attackers to cause a denial of service (crash or instability) via a compressed DNS packet with a label length byte with an incorrect offset.
How severe is CVE-2005-4794?: CVE-2005-4794 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-4794 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-4794?: CVE-2005-4794 primarily affects Cisco Application And Content Networking Software. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-4794?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-4794 published?: CVE-2005-4794 was published on 2005-12-31 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:cisco:application_and_content_networking_software:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ata:186:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ata:188:*:*:*:*:*:*:*
cpe:2.3:a:cisco:subscriber_edge_services_manager:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7902:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7905:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7912:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unity_express:*:*:*:*:*:*:*:*