CVE-2022-20660
Cisco IP Phones Information Disclosure Vulnerability
A vulnerability in the information storage architecture of several Cisco IP Phone models could allow an unauthenticated, physical attacker to obtain confidential information from an affected device. This vulnerability is due to unencrypted storage of confidential information on an affected device. An attacker could exploit this vulnerability by physically extracting and accessing one of the flash memory chips. A successful exploit could allow the attacker to obtain confidential information from the device, which could be used for subsequent attacks.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
4.6
Cisco IP Phones Information Disclosure Vulnerability
A vulnerability in the information storage architecture of several Cisco IP Phone models could allow an unauthenticated, physical attacker to obtain confidential information from an affected device. This vulnerability is due to unencrypted storage of confidential information on an affected device. An attacker could exploit this vulnerability by physically extracting and accessing one of the flash memory chips. A successful exploit could allow the attacker to obtain confidential information from the device, which could be used for subsequent attacks.
- Record
CVE-2022-20660- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-312
- Updated
- 2026-11-02
EUVDEUVD-2022-25910
4.6
A vulnerability in the information storage architecture of several Cisco IP Phone models could allow an unauthenticated, physical attacker to obtain confidential information from an affected device. This vulnerability is due to unencrypted storage of confidential information on an affected device. An attacker could exploit this vulnerability by physically extracting and accessing one of the flash memory chips. A successful exploit could allow the attacker to obtain confidential information from the device, which could be used for subsequent attacks.
- Record
EUVD-2022-25910- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-47mp-v7q4-xpjw No score
A vulnerability in the information storage architecture of several Cisco IP Phone models could...
A vulnerability in the information storage architecture of several Cisco IP Phone models could allow an unauthenticated, physical attacker to obtain confidential information from an affected device. This vulnerability is due to unencrypted storage of confidential information on an affected device. An attacker could exploit this vulnerability by physically extracting and accessing one of the flash memory chips. A successful exploit could allow the attacker to obtain confidential information from the device, which could be used for subsequent attacks.
- Record
GHSA-47mp-v7q4-xpjw- Weakness
- CWE-312
- Updated
- 2026-11-02
NVD
4.6
A vulnerability in the information storage architecture of several Cisco IP Phone models could allow an unauthenticated, physical attacker to obtain confidential information from an affected device. This vulnerability is due to unencrypted storage of confidential information on an affected device. An attacker could exploit this vulnerability by physically extracting and accessing one of the flash memory chips. A successful exploit could allow the attacker to obtain confidential information from the device, which could be used for subsequent attacks.
- Record
CVE-2022-20660- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-312
- Updated
- 2026-11-02
Affected products
- cisco session initiation protocol (sip) software
- cisco ip conference phone 7832 firmware
- cisco ip conference phone 8832 firmware
- cisco ip phone 7811 firmware
- cisco ip phone 7821 firmware
- cisco ip phone 7841 firmware
- cisco ip phone 7861 firmware
- cisco ip phone 8811 firmware
- cisco ip phone 8841 firmware
- cisco ip phone 8845 firmware
- cisco ip phone 8851 firmware
- cisco ip phone 8861 firmware
Show 9 moreShow less
- cisco ip phone 8865 firmware
- cisco unified ip conference phone 8831 firmware
- cisco unified ip conference phone 8831 for third-party call control firmware
- cisco unified ip phone 7945g firmware
- cisco unified ip phone 7965g firmware
- cisco unified ip phone 7975g firmware
- cisco unified sip phone 3905 firmware
- cisco wireless ip phone 8821-ex firmware
- cisco wireless ip phone 8821 firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-20660 is a medium vulnerability (CVSS 4.6) in Cisco Session Initiation Protocol (sip) Software, published January 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 30th percentile. No source names a fixed version.
References
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ip-phone-info-disc-fRdJfOxA
seclists.org/fulldisclosure/2022/Jan/34
packetstormsecurity.com/files/165567/Cisco-IP-Phone-Cleartext-Password-Storage.html
nvd.nist.gov/vuln/detail/CVE-2022-20660
github.com/advisories/GHSA-47mp-v7q4-xpjw