7.8

CVE-2018-0389: cisco cisco small business spa500 series ip phones Resource Management Errors

CVSS: 7.8v2.0HighModified
Published 13-03-2019Last modified 19-11-2024
Open JSON

Vulnerability summary

CVE-2018-0389 is a high (CVSS 7.8) Resource Management Errors vulnerability in cisco cisco small business spa500 series ip phones. EPSS estimates a 2.52% chance of exploitation in the next 30 days, higher than 84.5% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
2.52%
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. 13-03-2019
    PublishedVulnerability first disclosed.
  2. 19-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the implementation of Session Initiation Protocol (SIP) processing in Cisco Small Business SPA514G IP Phones could allow an unauthenticated, remote attacker to cause an affected device to become unresponsive, resulting in a denial of service (DoS) condition. The vulnerability is due to improper processing of SIP request messages by an affected device. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to become unresponsive, resulting in a DoS condition that persists until the device is restarted manually. Cisco has not released software updates that address this vulnerability. This vulnerability affects Cisco Small Business SPA514G IP Phones that are running firmware release 7.6.2SR2 or earlier.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.52%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

0.00 pp

From 2.52% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.52%

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

Cisco2 products

1 vendor · 2 products

References

2 links