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Fencer Intel
high 7.7

CVE-2019-15276 in the critical feed json

Cisco Wireless LAN Controller HTTP Parsing Engine Denial of Service Vulnerability

published 6y ago modified 4mo ago also EUVD-2019-6284

cvss
7.7
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
46.3%
EPSS 46.3% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

A vulnerability in the web interface of Cisco Wireless LAN Controller Software could allow a low-privileged, authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists due to a failure of the HTTP parsing engine to handle specially crafted URLs. An attacker could exploit this vulnerability by authenticating with low privileges to an affected controller and submitting the crafted URL to the web interface of the affected device. Conversely, an unauthenticated attacker could exploit this vulnerability by persuading a user of the web interface to click the crafted URL. A successful exploit could allow the attacker to cause an unexpected restart of the device, resulting in a DoS condition.

Patch / fix

  • cisco wireless_lan_controller_software 8.10

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Timeline

  1. Published
  2. First public exploit (EDB-47744)

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

46.31% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-47744 Cisco WLC 2504 8.9 - Denial of Service (PoC) dos, 2019-12-04
  • packetstormsecurity.com http://packetstormsecurity.com/files/155554/Cisco-WLC-2504-8.9-Denial-Of-Service.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.7 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • Cisco Cisco Wireless LAN Controller (WLC)

Classification

Weakness
  • CWE-20 Improper Input Validation

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.