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Fencer Intel
medium 6.1

CVE-2017-12308 json

A vulnerability in the web framework of Cisco Small Business Managed Switches software could allow an unauthenticated, remote attacker to c…

published 2018-01-18 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-3881

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

A vulnerability in the web framework of Cisco Small Business Managed Switches software could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack against a user of the web interface of an affected system. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected system. An attacker could exploit this vulnerability by convincing a user to follow a malicious link or by intercepting a user request and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information. This vulnerability affects the following Cisco Small Business 300 and 500 Series Managed Switches: Cisco 350 Series Managed Switches, Cisco 350X Series Stackable Managed Switches, Cisco 550X Series Stackable Managed Switches, Cisco ESW2 Series Advanced Switches, Cisco Small Business 300 Series Managed Switches, Cisco Small Business 500 Series Stackable Managed Switches. Cisco Bug IDs: CSCvg29980.

Patch / fix

  • cisco sg350-10_firmware 1.4.9.4
  • cisco sg350-10p_firmware 1.4.9.4
  • cisco sg350-10mp_firmware 1.4.9.4
  • cisco sg355-10p_firmware 1.4.9.4
  • cisco sg350-28_firmware 1.4.9.4
  • cisco sg350-28p_firmware 1.4.9.4
  • cisco sg350-28mp_firmware 1.4.9.4
  • cisco sf350-48_firmware 1.4.9.4
  • cisco sf350-48p_firmware 1.4.9.4
  • cisco sf350-48mp_firmware 1.4.9.4
  • cisco sg350xg-2f10_firmware 1.4.9.4
  • cisco sg350xg-24f_firmware 1.4.9.4
  • cisco sg350xg-24t_firmware 1.4.9.4
  • cisco sg350xg-48t_firmware 1.4.9.4
  • cisco sg350x-24_firmware 1.4.9.4
  • cisco sg350x-24p_firmware 1.4.9.4
  • cisco sg350x-24mp_firmware 1.4.9.4
  • cisco sg350x-48_firmware 1.4.9.4
  • cisco sg350x-48p_firmware 1.4.9.4
  • cisco sg350x-48mp_firmware 1.4.9.4

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N

Affected products

  • n/a Cisco Small Business 300 and 500 Series Managed Switches

Classification

Weakness
  • CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.