Cisco IP Phones 7902/7905/7912, ATA 186/188, Unity Express, ACNS, and Subscriber Edge Services Manager (SESM) allows remote attackers to cau
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.
- Published
- Dec 31, 2005
- Updated
- Jun 16, 2026
- EPSS
- 2.4% · 83th percentile
- CWE
- —
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 20 / 40 · 5.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cisco | application and content networking software | cpe:2.3:a:cisco:application_and_content_networking_software |
| cisco | ata | cpe:2.3:a:cisco:ata |
| cisco | subscriber edge services manager | cpe:2.3:a:cisco:subscriber_edge_services_manager |
| cisco | ip phone 7902 | cpe:2.3:h:cisco:ip_phone_7902 |
| cisco | ip phone 7905 | cpe:2.3:h:cisco:ip_phone_7905 |
| cisco | ip phone 7912 | cpe:2.3:h:cisco:ip_phone_7912 |
| cisco | unity express | cpe:2.3:h:cisco:unity_express |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco application and content networking softwareall versions
- cisco ata186
- cisco ata188
- cisco ip phone 7902all versions
- cisco ip phone 7905all versions
- cisco ip phone 7912all versions
- cisco subscriber edge services managerall versions
- cisco unity expressall versions
Same product
cisco: all recordsOther highest-scoring records for the same primary product.
- CVE-2003-0982Buffer overflow in the authentication module for Cisco ACNS 4.x before 4.2.11, and 5.x before 5.0.5, allows remote attackers to execute arbi31Monitor
- CVE-2005-0601Cisco devices running Application and Content Networking System (ACNS) 4.x, 5.0, 5.1, or 5.2 use a default password when the setup dialog ha30Monitor
- CVE-2005-0597Cisco devices running Application and Content Networking System (ACNS) 5.0 before 5.0.17.6 and 5.1 before 5.1.11.6 allow remote attackers to21Monitor
- CVE-2005-0598The RealServer RealSubscriber on Cisco devices running Application and Content Networking System (ACNS) 5.1 allow remote attackers to cause 21Monitor
- CVE-2005-0599Cisco devices running Application and Content Networking System (ACNS) 4.x, 5.0, or 5.1 before 5.1.11.6 allow remote attackers to cause a de20Monitor
- CVE-2005-0600Cisco devices running Application and Content Networking System (ACNS) 5.0, 5.1 before 5.1.13.7, or 5.2 before 5.2.3.9 allow remote attacker20Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- secunia.com/advisories/15472
- securitytracker.com/id?1014043
- securitytracker.com/id?1014044
- securitytracker.com/id?1014045
- securitytracker.com/id?1014046
- securitytracker.com/id?1015975
- www.cisco.com/warp/public/707/cisco-sn-20050524-dns.shtml
- www.niscc.gov.uk/niscc/docs/al-20050524-00433.html
- www.niscc.gov.uk/niscc/docs/re-20050524-00432.pdf?lang=en
- www.osvdb.org/19003
- www.securityfocus.com/bid/13729
- exchange.xforce.ibmcloud.com/vulnerabilities/20712
Vendor advisories and official records. Exploit/PoC links are deliberately left out.