Vulnerability Monitor

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CVE-2019-1806

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Small Business Sx200, Sx300, Sx500, ESW2 Series Managed Switches and Small Business Sx250, Sx350, Sx550 Series Switches could allow an authenticated, remote attacker to cause the SNMP application of an affected device to cease processing traffic, resulting in the CPU utilization reaching one hundred percent. Manual intervention may be required before a device resumes normal operations. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a malicious SNMP packet to an affected device. A successful exploit could allow the attacker to cause the device to cease forwarding traffic, which could result in a denial of service (DoS) condition. Cisco has released firmware updates that address this vulnerability.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.7, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 210 products from cisco, from cisco, from cisco and 207 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

2019-05-15T22:29:00.247

Last Modified

2024-11-21T04:37:25.137

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.7 (HIGH)

CVSSv2 Vector

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

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

8.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-20
  • Type: Primary
    CWE-770
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 sg500x-24p_firmware < 1.4.10.6 Yes
Hardware cisco sg500x-24p - 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
Operating System cisco sg250x-24_firmware < 2.5.0.78 Yes
Hardware cisco sg250x-24 - No
Operating System cisco sg250x-24p_firmware < 2.5.0.78 Yes
Hardware cisco sg250x-24p - No
Operating System cisco sg250x-48_firmware < 2.5.0.78 Yes
Hardware cisco sg250x-48 - No
Operating System cisco sg250x-48p_firmware < 2.5.0.78 Yes
Hardware cisco sg250x-48p - No
Operating System cisco sg250-08_firmware < 2.5.0.78 Yes
Hardware cisco sg250-08 - No
Operating System cisco sg250-08hp_firmware < 2.5.0.78 Yes
Hardware cisco sg250-08hp - No
Operating System cisco sg250-10p_firmware < 2.5.0.78 Yes
Hardware cisco sg250-10p - No
Operating System cisco sg250-18_firmware < 2.5.0.78 Yes
Hardware cisco sg250-18 - No
Operating System cisco sg250-26_firmware < 2.5.0.78 Yes
Hardware cisco sg250-26 - No
Operating System cisco sg250-26hp_firmware < 2.5.0.78 Yes
Hardware cisco sg250-26hp - No
Operating System cisco sg250-26p_firmware < 2.5.0.78 Yes
Hardware cisco sg250-26p - No
Operating System cisco sg250-50_firmware < 2.5.0.78 Yes
Hardware cisco sg250-50 - No
Operating System cisco sg250-50hp_firmware < 2.5.0.78 Yes
Hardware cisco sg250-50hp - No
Operating System cisco sg250-50p_firmware < 2.5.0.78 Yes
Hardware cisco sg250-50p - No
Operating System cisco sf250-24_firmware < 2.5.0.78 Yes
Hardware cisco sf250-24 - No
Operating System cisco sf250-24p_firmware < 2.5.0.78 Yes
Hardware cisco sf250-24p - No
Operating System cisco sf250-48_firmware < 2.5.0.78 Yes
Hardware cisco sf250-48 - No
Operating System cisco sf250-48hp_firmware < 2.5.0.78 Yes
Hardware cisco sf250-48hp - No
Operating System cisco sg350-10_firmware < 2.5.0.78 Yes
Hardware cisco sg350-10 - No
Operating System cisco sg350-10p_firmware < 2.5.0.78 Yes
Hardware cisco sg350-10p - No
Operating System cisco sg350-10mp_firmware < 2.5.0.78 Yes
Hardware cisco sg350-10mp - No
Operating System cisco sg355-10p_firmware < 2.5.0.78 Yes
Hardware cisco sg355-10p - No
Operating System cisco sg350-28_firmware < 2.5.0.78 Yes
Hardware cisco sg350-28 - No
Operating System cisco sg350-28p_firmware < 2.5.0.78 Yes
Hardware cisco sg350-28p - No
Operating System cisco sg350-28mp_firmware < 2.5.0.78 Yes
Hardware cisco sg350-28mp - No
Operating System cisco sf350-48_firmware < 2.5.0.78 Yes
Hardware cisco sf350-48 - No
Operating System cisco sf350-48p_firmware < 2.5.0.78 Yes
Hardware cisco sf350-48p - No
Operating System cisco sf350-48mp_firmware < 2.5.0.78 Yes
Hardware cisco sf350-48mp - No
Operating System cisco sx550x-16ft_firmware < 2.5.0.78 Yes
Hardware cisco sx550x-16ft - No
Operating System cisco sx550x-24ft_firmware < 2.5.0.78 Yes
Hardware cisco sx550x-24ft - No
Operating System cisco sx550x-12f_firmware < 2.5.0.78 Yes
Hardware cisco sx550x-12f - No
Operating System cisco sx550x-24f_firmware < 2.5.0.78 Yes
Hardware cisco sx550x-24f - No
Operating System cisco sx550x-24_firmware < 2.5.0.78 Yes
Hardware cisco sx550x-24 - No
Operating System cisco sx550x-52_firmware < 2.5.0.78 Yes
Hardware cisco sx550x-52 - No
Operating System cisco sg550x-24_firmware < 2.5.0.78 Yes
Hardware cisco sg550x-24 - No
Operating System cisco sg550x-24p_firmware < 2.5.0.78 Yes
Hardware cisco sg550x-24p - No
Operating System cisco sg550x-24mp_firmware < 2.5.0.78 Yes
Hardware cisco sg550x-24mp - No
Operating System cisco sg550x-24mpp_firmware < 2.5.0.78 Yes
Hardware cisco sg550x-24mpp - No
Operating System cisco sg550x-48_firmware < 2.5.0.78 Yes
Hardware cisco sg550x-48 - No
Operating System cisco sg550x-48p_firmware < 2.5.0.78 Yes
Hardware cisco sg550x-48p - No
Operating System cisco sg550x-48mp_firmware < 2.5.0.78 Yes
Hardware cisco sg550x-48mp - No
Operating System cisco sf550x-24_firmware < 2.5.0.78 Yes
Hardware cisco sf550x-24 - No
Operating System cisco sf550x-24p_firmware < 2.5.0.78 Yes
Hardware cisco sf550x-24p - No
Operating System cisco sf550x-24mp_firmware < 2.5.0.78 Yes
Hardware cisco sf550x-24mp - No
Operating System cisco sf550x-48_firmware < 2.5.0.78 Yes
Hardware cisco sf550x-48 - No
Operating System cisco sf550x-48p_firmware < 2.5.0.78 Yes
Hardware cisco sf550x-48p - No
Operating System cisco sf550x-48mp_firmware < 2.5.0.78 Yes
Hardware cisco sf550x-48mp - 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.