CVE-2015-4200
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing...
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (memory consumption) by triggering an error during CPE negotiation, aka Bug ID CSCug00885.
Exploit likelihood
What each source reports
NVD Score used
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (memory consumption) by triggering an error during CPE negotiation, aka Bug ID CSCug00885.
- Record
CVE-2015-4200- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (memory consumption) by triggering an error during CPE negotiation, aka Bug ID CSCug00885.
- Record
CVE-2015-4200- Updated
- 2026-11-02
EUVDEUVD-2015-4223 No score
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (memory consumption) by triggering an error during CPE negotiation, aka Bug ID CSCug00885.
- Record
EUVD-2015-4223- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5r6c-r963-4qqw No score
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing...
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (memory consumption) by triggering an error during CPE negotiation, aka Bug ID CSCug00885.
- Record
GHSA-5r6c-r963-4qqw- 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-2015-4200 is a high vulnerability (CVSS 7.8) in Cisco Ios, published June 23, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.43%, the 89th percentile. No source names a fixed version.