7.8

CVE-2019-1922: cisco cisco ip phone 8800 series software NULL Pointer Dereference

CVSS: 7.8v2.0HighModified
Published 06-07-2019Last modified 21-11-2024
Open JSON

Vulnerability summary

CVE-2019-1922 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in cisco cisco ip phone 8800 series software. EPSS estimates a 1.32% chance of exploitation in the next 30 days, higher than 70.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
1.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-07-2019
    PublishedVulnerability first disclosed.
  2. 21-11-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.32%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

0.00 pp

From 1.32% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco13 products

1 vendor · 13 products

References

1 links