CVE-2011-2586
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a...
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.
Exploit likelihood
What each source reports
NVD Score used
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.
- Record
CVE-2011-2586- CVSS 2.0
- 5.4 Medium
AV:N/AC:H/Au:N/C:N/I:N/A:C - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.
- Record
CVE-2011-2586- Updated
- 2026-11-02
EUVDEUVD-2011-2569 No score
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.
- Record
EUVD-2011-2569- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4444-267r-x82x No score
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a...
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.
- Record
GHSA-4444-267r-x82x- Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-2586 is a medium vulnerability (CVSS 5.4) in Cisco Ios, published May 2, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.19%, the 68th percentile. No source names a fixed version.