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Fencer Vulns
high 8.1

CVE-2019-12636 json

Cisco Small Business Smart and Managed Switches Cross-Site Request Forgery Vulnerability

published 2019-10-16 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-4227

cvss
8.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

A vulnerability in the web-based management interface of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. The vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to follow a malicious link. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the targeted user. If the user has administrative privileges, the attacker could alter the configuration, execute commands, or cause a denial of service (DoS) condition on an affected device.

Patch / fix

  • cisco sf250-24_firmware 2.5.0.90
  • cisco sf250-24p_firmware 2.5.0.90
  • cisco sf250-48_firmware 2.5.0.90
  • cisco sf250-48hp_firmware 2.5.0.90
  • cisco sf250-08_firmware 2.5.0.90
  • cisco sf250-08hp_firmware 2.5.0.90
  • cisco sf250-10p_firmware 2.5.0.90
  • cisco sf250-18_firmware 2.5.0.90
  • cisco sf250-26_firmware 2.5.0.90
  • cisco sf250-26hp_firmware 2.5.0.90
  • cisco sf250-26p_firmware 2.5.0.90
  • cisco sf250-50_firmware 2.5.0.90
  • cisco sf250-50hp_firmware 2.5.0.90
  • cisco sf250-50p_firmware 2.5.0.90
  • cisco sf250x-24_firmware 2.5.0.90
  • cisco sf250x-24p_firmware 2.5.0.90
  • cisco sf250x-48_firmware 2.5.0.90
  • cisco sf250x-48p_firmware 2.5.0.90
  • cisco sg350-10_firmware 2.5.0.90
  • cisco sg350-10p_firmware 2.5.0.90

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 8.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Cisco Cisco Small Business 250 Series Smart Switches Software

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns 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.