Cisco IOS XR, when configured for Multi Protocol Label Switching (MPLS) and running on…
Priority LOW 27Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01857 79th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xr:3.0.1:*:*:*:*:*:*:* | 3.0.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.1.0:*:*:*:*:*:*:* | 3.1.0 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.2:*:*:*:*:*:*:* | 3.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.2.1:*:*:*:*:*:*:* | 3.2.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.2.2:*:*:*:*:*:*:* | 3.2.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.2.3:*:crs-1:*:*:*:*:* | 3.2.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.2.3:*:prp:*:*:*:*:* | 3.2.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.2.4:*:*:*:*:*:*:* | 3.2.4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.2.50:*:*:*:*:*:*:* | 3.2.50 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xr:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.2.1:*:*:*:*:*:*:* Versions 3.2.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.2.2:*:*:*:*:*:*:* Versions 3.2.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.2.3:*:crs-1:*:*:*:*:* Versions 3.2.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.2.3:*:prp:*:*:*:*:* Versions 3.2.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.2.4:*:*:*:*:*:*:* Versions 3.2.4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.2.50:*:*:*:*:*:*:* Versions 3.2.50 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-1928
- 2026-10-03 Alias added: GHSA-357j-2xvw-x58c
References
Other 2
More Cisco Ios Xr vulnerabilities
- TI-2020-02680 Cisco IOS XR Software Cisco Discovery Protocol Format String Vulnerability KEVCVSS 3.1HIGH 8.8
- TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
- TI-2020-03113 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities KEVCVSS 3.1HIGH 8.6
- TI-2020-03110 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability KEVCVSS 3.1HIGH 8.6
- TI-2018-00142 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.0
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
Sources
- CVE-2006-1928 · CVE Program
- CVE-2006-1928 · NVD
- FIRST EPSS
- GHSA-357j-2xvw-x58c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences