What’s Vulnerable › Vulnerabilities
CVE-2018-15439: Cisco Small Business Switches Privileged Access Vulnerability
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 49.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2018-11-08 · updated 2026-06-17
- Weakness: CWE-798
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.
Affected products
- Cisco Sf200-24 Firmware: all versions
- Cisco Sf200-24Fp Firmware: all versions
- Cisco Sf200-24P Firmware: all versions
- Cisco Sf200-48 Firmware: all versions
- Cisco Sf200-48P Firmware: all versions
- Cisco Sf250-24 Firmware: all versions
- Cisco Sf250-24P Firmware: all versions
- Cisco Sf250-48 Firmware: all versions
- Cisco Sf250-48Hp Firmware: all versions
- Cisco Sf300-08 Firmware: all versions
- Cisco Sf300-24 Firmware: all versions
- Cisco Sf300-24Mp Firmware: all versions
- Cisco Sf300-24P Firmware: all versions
- Cisco Sf300-24Pp Firmware: all versions
- Cisco Sf300-48 Firmware: all versions
- Cisco Sf300-48P Firmware: all versions
- Cisco Sf300-48Pp Firmware: all versions
- Cisco Sf302-08 Firmware: all versions
- Cisco Sf302-08Mp Firmware: all versions
- Cisco Sf302-08Mpp Firmware: all versions
- Cisco Sf302-08P Firmware: all versions
- Cisco Sf302-08Pp Firmware: all versions
- Cisco Sf350-48 Firmware: all versions
- Cisco Sf350-48Mp Firmware: all versions
- Cisco Sf350-48P Firmware: all versions
- Cisco Sf500-24 Firmware: all versions
- Cisco Sf500-24P Firmware: all versions
- Cisco Sf500-48 Firmware: all versions
- Cisco Sf500-48P Firmware: all versions
- Cisco Sf550X-24 Firmware: all versions
References
- http://www.securityfocus.com/bid/105873
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privacc
- http://www.securityfocus.com/bid/105873
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privacc
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