CVE-2018-15439
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 49.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 49.74% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-798
- Affected
- cisco/sg200-50 firmware · cisco/sg200-50p firmware · cisco/sg200-50fp firmware · cisco/sg200-26 firmware · cisco/sg200-26p firmware · cisco/sg200-26fp firmware · cisco/sg200-18 firmware · cisco/sg200-10fp firmware · cisco/sg200-08 firmware · cisco/sg200-08p firmware · cisco/sf200-24 firmware · cisco/sf200-24p firmware · cisco/sf200-24fp firmware · cisco/sf200-48 firmware · cisco/sf200-48p firmware · cisco/sf302-08pp firmware · cisco/sf302-08mpp firmware · cisco/sg300-10pp firmware · cisco/sg300-10mpp firmware · cisco/sf300-24pp firmware · +40 more
- Source
- psirt@cisco.com
EPSS 49.7% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/105873Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privaccVendor Advisory
- http://www.securityfocus.com/bid/105873Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privaccVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.