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TI-2017-09100 Aliases CVE-2017-12328GHSA-9wxx-q8qf-rxcw

Improper input validation in Cisco IP Phone 8800 Series

Priority LOW 30CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

A vulnerability in Session Initiation Protocol (SIP) call handling in Cisco IP Phone 8800 Series devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition because the SIP process unexpectedly restarts. All active phone calls are dropped as the SIP process restarts. The vulnerability is due to incomplete input validation of the SIP packet header. An attacker could exploit this vulnerability by sending a malformed SIP packet to a targeted phone. An exploit could allow the attacker to cause a DoS condition because all phone calls are dropped when the SIP process unexpectedly restarts. Cisco Bug IDs: CSCvc62590.

Why it matters now

EPSS 0.02133 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Cisco IP Phone 8800 SeriesCisco IP Phone 8800 Series—No fix listedCNA
  • Cisco IP Phone 8800 Series Vendor— Affected Cisco IP Phone 8800 Series Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ip_phone_8800_series_firmware:11.0\(0.1\):*:*:*:*:*:*:*11.0(0.1)VulnerableCisco
  • cpe:2.3:o:cisco:ip_phone_8800_series_firmware:11.0\(0.1\):*:*:*:*:*:*:* Versions 11.0(0.1) Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12328
  2. 2026-10-03 Alias added: GHSA-9wxx-q8qf-rxcw

References

Advisory 1

  • TI-2018-00420 Cisco IP Phone 8800 Series Arbitrary Script Injection Vulnerability CVSS 3.0HIGH 8.8
  • TI-2015-05344 The encryption-processing feature in Cisco libSRTP before 1.5.3 allows remote attackers… CVSS 3.0HIGH 7.5
  • TI-2016-01310 Memory corruption in Cisco IP Phones CVSS 3.0HIGH 7.5
  • TI-2016-01366 Cisco IP Phone 8800 devices with software 11.0(1) allow remote attackers to cause a… CVSS 3.0HIGH 7.5
  • TI-2016-01294 CISCO IP 8800 phones with software 11.0.1 and earlier allow local users to gain… CVSS 3.0HIGH 7.8
  • TI-2017-09081 Command injection in Cisco IP Phone 8800 Series CVSS 3.0MEDIUM 6.7
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences