Cisco IP Phone 7800 and 8800 Series Session Initiation Protocol Denial of Service Vulnerability
Published Jul 6, 2019
7.5
HIGHCVSS 3.0
EPSS 1.32%
Description
A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to insufficient validation of input Session Initiation Protocol (SIP) packets. An attacker could exploit this vulnerability by altering the SIP replies that are sent to the affected phone during the registration process. A successful exploit could allow the attacker to cause the phone to reboot and not complete the registration process.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<12.0(1)MN130
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco IP Phone 8800 Series Software | n/a |
|
Configuration 1
- n/a
Running on/with
- n/a
Configuration 2
- 11.5\(1\)
- 12.5\(1\)
Running on/with
- n/a
Configuration 3
- n/a
Running on/with
- n/a
Configuration 4
- n/a
Running on/with
- n/a
Configuration 5
- n/a
Running on/with
- n/a
Configuration 6
- n/a
Running on/with
- n/a
Configuration 7
- 11.5\(1\)
- 12.5\(1\)
Running on/with
- n/a
Configuration 8
- 11.5\(1\)
- 12.5\(1\)
Running on/with
- n/a
Configuration 9
- 11.5\(1\)
- 12.5\(1\)
Running on/with
- n/a
Configuration 10
- 11.5\(1\)
- 12.5\(1\)
Running on/with
- n/a
Configuration 11
- 11.5\(1\)
- 12.5\(1\)
Running on/with
- n/a
Configuration 12
- 11.5\(1\)
- 12.5\(1\)
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (CVE.org) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Nov 21, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.32% (0.01317) | 69.79th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.32% (0.01317) | 69.51th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00159) | 52.88th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.16% (0.00159) | 52.68th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00159) | 50.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.50% (0.04499) | 74.08th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.86% (0.02857) | 63.60th | v1 |
| Jan 6, 2022 | 2.86% (0.02857) | 63.25th | v1 |
| Jan 5, 2022 | 0.65% (0.00651) | 47.22th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.65% (0.00651) | 0.00th | v1 |
References (1)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-ip-phone-sip-dos vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-ip-phone-sip-dos | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.