Vulnerability Monitor

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CVE-2019-1892

A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a memory corruption on an affected device. The vulnerability is due to improper validation of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS packet to the management web interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a denial of service (DoS) condition.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 114 products from cisco, from cisco, from cisco and 111 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-07-06T02:15:11.293

Last Modified

2024-11-21T04:37:37.757

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-119
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco sf200-24_firmware < 1.4.10.6 Yes
Hardware cisco sf200-24 - No
Operating System cisco sf200-24p_firmware < 1.4.10.6 Yes
Hardware cisco sf200-24p - No
Operating System cisco sf200-48_firmware < 1.4.10.6 Yes
Hardware cisco sf200-48 - No
Operating System cisco sf200-48p_firmware < 1.4.10.6 Yes
Hardware cisco sf200-48p - No
Operating System cisco sg200-18_firmware < 1.4.10.6 Yes
Hardware cisco sg200-18 - No
Operating System cisco sg200-26_firmware < 1.4.10.6 Yes
Hardware cisco sg200-26 - No
Operating System cisco sg200-26p_firmware < 1.4.10.6 Yes
Hardware cisco sg200-26p - No
Operating System cisco sg200-50_firmware < 1.4.10.6 Yes
Hardware cisco sg200-50 - No
Operating System cisco sg200-50p_firmware < 1.4.10.6 Yes
Hardware cisco sg200-50p - No
Operating System cisco sg300-10_firmware < 1.4.10.6 Yes
Hardware cisco sg300-10 - No
Operating System cisco sg300-10mp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-10mp - No
Operating System cisco sg300-10mpp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-10mpp - No
Operating System cisco sg300-10sfp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-10sfp - No
Operating System cisco sg300-10p_firmware < 1.4.10.6 Yes
Hardware cisco sg300-10p - No
Operating System cisco sg300-10pp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-10pp - No
Operating System cisco sg300-20_firmware < 1.4.10.6 Yes
Hardware cisco sg300-20 - No
Operating System cisco sg300-28_firmware < 1.4.10.6 Yes
Hardware cisco sg300-28 - No
Operating System cisco sg300-28p_firmware < 1.4.10.6 Yes
Hardware cisco sg300-28p - No
Operating System cisco sg300-28pp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-28pp - No
Operating System cisco sg300-28mp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-28mp - No
Operating System cisco sg300-28sfp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-28sfp - No
Operating System cisco sg300-52_firmware < 1.4.10.6 Yes
Hardware cisco sg300-52 - No
Operating System cisco sg300-52p_firmware < 1.4.10.6 Yes
Hardware cisco sg300-52p - No
Operating System cisco sg300-52mp_firmware < 1.4.10.6 Yes
Hardware cisco sg300-52mp - No
Operating System cisco sf300-08_firmware < 1.4.10.6 Yes
Hardware cisco sf300-08 - No
Operating System cisco sf302-08_firmware < 1.4.10.6 Yes
Hardware cisco sf302-08 - No
Operating System cisco sf302-08mp_firmware < 1.4.10.6 Yes
Hardware cisco sf302-08mp - No
Operating System cisco sf302-08p_firmware < 1.4.10.6 Yes
Hardware cisco sf302-08p - No
Operating System cisco sf302-08pp_firmware < 1.4.10.6 Yes
Hardware cisco sf302-08pp - No
Operating System cisco sf302-08mpp_firmware < 1.4.10.6 Yes
Hardware cisco sf302-08mpp - No
Operating System cisco sf300-24_firmware < 1.4.10.6 Yes
Hardware cisco sf300-24 - No
Operating System cisco sf300-24p_firmware < 1.4.10.6 Yes
Hardware cisco sf300-24p - No
Operating System cisco sf300-24mp_firmware < 1.4.10.6 Yes
Hardware cisco sf300-24mp - No
Operating System cisco sf300-24pp_firmware < 1.4.10.6 Yes
Hardware cisco sf300-24pp - No
Operating System cisco sf300-48_firmware < 1.4.10.6 Yes
Hardware cisco sf300-48 - No
Operating System cisco sf300-48p_firmware < 1.4.10.6 Yes
Hardware cisco sf300-48p - No
Operating System cisco sf300-48pp_firmware < 1.4.10.6 Yes
Hardware cisco sf300-48pp - No
Operating System cisco sf500-24_firmware < 1.4.10.6 Yes
Hardware cisco sf500-24 - No
Operating System cisco sf500-24p_firmware < 1.4.10.6 Yes
Hardware cisco sf500-24p - No
Operating System cisco sf500-24mp_firmware < 1.4.10.6 Yes
Hardware cisco sf500-24mp - No
Operating System cisco sf500-48_firmware < 1.4.10.6 Yes
Hardware cisco sf500-48 - No
Operating System cisco sf500-48p_firmware < 1.4.10.6 Yes
Hardware cisco sf500-48p - No
Operating System cisco sf500-48mp_firmware < 1.4.10.6 Yes
Hardware cisco sf500-48mp - No
Operating System cisco sg500-28_firmware < 1.4.10.6 Yes
Hardware cisco sg500-28 - No
Operating System cisco sg500-28p_firmware < 1.4.10.6 Yes
Hardware cisco sg500-28p - No
Operating System cisco sg500-28mpp_firmware < 1.4.10.6 Yes
Hardware cisco sg500-28mpp - No
Operating System cisco sg500-52_firmware < 1.4.10.6 Yes
Hardware cisco sg500-52 - No
Operating System cisco sg500-52p_firmware < 1.4.10.6 Yes
Hardware cisco sg500-52p - No
Operating System cisco sg500-52mp_firmware < 1.4.10.6 Yes
Hardware cisco sg500-52mp - No
Operating System cisco sg500x-24_firmware < 1.4.10.6 Yes
Hardware cisco sg500x-24 - No
Operating System cisco sg500x24mpp_firmware < 1.4.10.6 Yes
Hardware cisco sg500x24mpp - No
Operating System cisco sg500x-48_firmware < 1.4.10.6 Yes
Hardware cisco sg500x-48 - No
Operating System cisco sg500x-48p_firmware < 1.4.10.6 Yes
Hardware cisco sg500x-48p - No
Operating System cisco sg500x-48mp_firmware < 1.4.10.6 Yes
Hardware cisco sg500x-48mp - No
Operating System cisco sg500xg8f8t_firmware < 1.4.10.6 Yes
Hardware cisco sg500xg8f8t - No
Operating System cisco esw2-350g52dc_firmware < 1.4.10.6 Yes
Hardware cisco esw2-350g52dc - No
Operating System cisco esw2-550x48dc_firmware < 1.4.10.6 Yes
Hardware cisco esw2-550x48dc - No
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.