Cisco IOS XR, when configured for Multi Protocol Label Switching (MPLS) and running on Cisco CRS-1 routers, allows remote attackers to cause a denial of service (Modular Services Cards (MSC) crash or "MPLS packet handling problems") via certain MPLS packets, as identified by Cisco bug IDs (1) CSCsd15970 and (2) CSCsd55531
Published Apr 20, 2006
5.0
MEDIUMCVSS 2.0
EPSS 1.81%
Description
Cisco IOS XR, when configured for Multi Protocol Label Switching (MPLS) and running on Cisco CRS-1 routers, allows remote attackers to cause a denial of service (Modular Services Cards (MSC) crash or "MPLS packet handling problems") via certain MPLS packets, as identified by Cisco bug IDs (1) CSCsd15970 and (2) CSCsd55531.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.81% (0.01814) | 77.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.81% (0.01814) | 75.79th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.22% (0.01224) | 77.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.36% (0.03363) | 91.74th | v3 (v2023.03.01) |
| Apr 1, 2023 | 3.36% (0.03363) | 89.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.21% (0.03211) | 89.68th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://secunia.com/advisories/19740 third-party-advisoryx_refsource_SECUNIA
- http://securitytracker.com/id?1015964 vdb-entryx_refsource_SECTRACK
- http://www.cisco.com/warp/public/707/cisco-sa-20060419-xr.shtml vendor-advisoryx_refsource_CISCO
- http://www.osvdb.org/24811 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/17607 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/1433 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/25881 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/19740 | third-party-advisoryx_refsource_SECUNIA | |
| http://securitytracker.com/id?1015964 | vdb-entryx_refsource_SECTRACK | |
| http://www.cisco.com/warp/public/707/cisco-sa-20060419-xr.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.osvdb.org/24811 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/17607 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2006/1433 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/25881 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.