9.8

CVE-2018-15439: cisco cisco small business 300 series managed switches Use of Hard-coded Credentials

CVSS: 9.8v3.0CriticalModified
Published 08-11-2018Last modified 26-11-2024

Vulnerability summary

CVE-2018-15439 is a critical (CVSS 9.8) Use of Hard-coded Credentials vulnerability in cisco cisco small business 300 series managed switches. EPSS estimates a 49.74% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (CVE.org)
EPSS score
49.74%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1metasploit

Timeline

  1. 08-11-2018
    PublishedVulnerability first disclosed.
  2. 26-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the Cisco Small Business Switches software could allow an unauthenticated, remote attacker to bypass the user authentication mechanism of an affected device. The vulnerability exists because under specific circumstances, the affected software enables a privileged user account without notifying administrators of the system. An attacker could exploit this vulnerability by using this account to log in to an affected device and execute commands with full admin rights. Cisco has not released software updates that address this vulnerability. This advisory will be updated with fixed software information once fixed software becomes available. There is a workaround to address this vulnerability.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

49.74%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

0.00 pp

From 49.74% on 19-09-2026

19-09-202619-10-2026
EPSS score
49.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • MetasploitMetasploitremoteVerified

    Cisco Prime Infrastructure Runrshell Privilege Escalation

    exploit/linux/local/cpi_runrshell_priv_esc

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Cisco115 products

1 vendor · 115 products

References

2 links