Cisco IP Phone 6800/IP Phone 7800/IP Phone 8800 denial of service

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Cisco IP Phone 6800, IP Phone 7800 and IP Phone 8800. It has been classified as problematic. This impacts an unknown function. The manipulation leads to denial of service. This vulnerability is listed as CVE-2023-20079. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.
Details
A vulnerability was found in Cisco IP Phone 6800, IP Phone 7800 and IP Phone 8800 (IP Phone Software) (unknown version) and classified as critical. This issue affects an unknown code block. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.
The weakness was presented 03/01/2023 as cisco-sa-ip-phone-cmd-inj-KMFynVcP. It is possible to read the advisory at sec.cloudapps.cisco.com. The identification of this vulnerability is CVE-2023-20079 since 10/27/2022. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-24258). Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.2
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
10/27/2022 🔍03/01/2023 🔍
03/01/2023 🔍
08/21/2025 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-ip-phone-cmd-inj-KMFynVcP
Status: Confirmed
CVE: CVE-2023-20079 (🔍)
GCVE (CVE): GCVE-0-2023-20079
GCVE (VulDB): GCVE-100-222143
EUVD: 🔍
Entry
Created: 03/01/2023 22:06Updated: 08/21/2025 15:05
Changes: 03/01/2023 22:06 (38), 03/30/2023 10:34 (1), 08/21/2025 15:05 (16)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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