How severe is CVE-2019-1922?

CVE-2019-1922 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-1922 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1922?

CVE-2019-1922 primarily affects Cisco Ip Conference Phone 7832 Firmware. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-1922?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-1922 published?

CVE-2019-1922 was published on 2019-07-06 and last updated on 2026-06-17.

CVE-2019-1922

CVE-2019-1922 is a medium-severity vulnerability in Cisco Ip Conference Phone 7832 Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 7.8
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Cisco Ip Conference Phone 7832 Firmware
Published: 2019-07-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-1922?: 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.
How severe is CVE-2019-1922?: CVE-2019-1922 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-1922 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1922?: CVE-2019-1922 primarily affects Cisco Ip Conference Phone 7832 Firmware. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-1922?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-1922 published?: CVE-2019-1922 was published on 2019-07-06 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-ip-phone-sip-dos

Affected products (19)

cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7821_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7841_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7861_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8811_firmware:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8811_firmware:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8841_firmware:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8841_firmware:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8845_firmware:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8845_firmware:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8851_firmware:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8851_firmware:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8861_firmware:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8861_firmware:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8865_firmware:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8865_firmware:12.5\(1\):*:*:*:*:*:*:*

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