Cisco IOS XR 3.8.1 through 4.2.0 does not properly process fragmented packets within the…
Priority LOW 35Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Cisco IOS XR 3.8.1 through 4.2.0 does not properly process fragmented packets within the RP-A, RP-B, PRP, and DRP-B route-processor components, which allows remote attackers to cause a denial of service (transmission outage) via (1) IPv4 or (2) IPv6 traffic, aka Bug ID CSCuh30380.
Why it matters now
EPSS 0.01661 76th 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 · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xr:3.8.1:*:*:*:*:*:*:* | 3.8.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.8.2:*:*:*:*:*:*:* | 3.8.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.8.3:*:*:*:*:*:*:* | 3.8.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.8.4:*:*:*:*:*:*:* | 3.8.4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.9.0:*:*:*:*:*:*:* | 3.9.0 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.9.1:*:*:*:*:*:*:* | 3.9.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:3.9.2:*:*:*:*:*:*:* | 3.9.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.0.0:*:*:*:*:*:*:* | 4.0.0 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.0.2:*:*:*:*:*:*:* | 4.0.2 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xr:3.8.1:*:*:*:*:*:*:* Versions 3.8.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.8.2:*:*:*:*:*:*:* Versions 3.8.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.8.3:*:*:*:*:*:*:* Versions 3.8.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.8.4:*:*:*:*:*:*:* Versions 3.8.4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.9.0:*:*:*:*:*:*:* Versions 3.9.0 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.9.1:*:*:*:*:*:*:* Versions 3.9.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:3.9.2:*:*:*:*:*:*:* Versions 3.9.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·Cisco
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xr:4.0.3:*:*:*:*:*:*:* | 4.0.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.0.4:*:*:*:*:*:*:* | 4.0.4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.1.1:*:*:*:*:*:*:* | 4.1.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.1.2:*:*:*:*:*:*:* | 4.1.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xr:4.2.0:*:*:*:*:*:*:* | 4.2.0 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xr:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.1.2:*:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xr:4.2.0:*:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-5549
- 2026-10-03 Alias added: GHSA-rmqj-585g-98v7
References
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-2013-5549 · CVE Program
- CVE-2013-5549 · NVD
- FIRST EPSS
- GHSA-rmqj-585g-98v7 · 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