CVE-2011-4016
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination...
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.
Exploit likelihood
What each source reports
NVD Score used
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.
- Record
CVE-2011-4016- CVSS 2.0
- 5.4 Medium
AV:N/AC:H/Au:N/C:N/I:N/A:C - Weakness
- CWE-20, CWE-284
- Updated
- 2026-11-02
CVE List No score
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.
- Record
CVE-2011-4016- Updated
- 2026-11-02
EUVDEUVD-2011-3969 No score
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.
- Record
EUVD-2011-3969- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rf3j-84v2-5387 No score
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination...
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.
- Record
GHSA-rf3j-84v2-5387- 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-2011-4016 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 1.32%, the 71st percentile. No source names a fixed version.