The TCP reassembly feature in Cisco IOS XE 3.7 before 3.7.3S and 3.8 before 3.8.1S on…
Priority LOW 38CWE-20Published · 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 · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The TCP reassembly feature in Cisco IOS XE 3.7 before 3.7.3S and 3.8 before 3.8.1S on 1000 ASR devices allows remote attackers to cause a denial of service (device reload) via large TCP packets that are processed by the (1) NAT or (2) ALG component, aka Bug ID CSCud72509.
Why it matters now
EPSS 0.0189 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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:3.7.0s:*:*:*:*:*:*:* | 3.7.0s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.7.1s:*:*:*:*:*:*:* | 3.7.1s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.7.2s:*:*:*:*:*:*:* | 3.7.2s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.8.0s:*:*:*:*:*:*:* | 3.8.0s | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_1023_router:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:3.7.0s:*:*:*:*:*:*:* Versions 3.7.0s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.7.1s:*:*:*:*:*:*:* Versions 3.7.1s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.7.2s:*:*:*:*:*:*:* Versions 3.7.2s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.8.0s:*:*:*:*:*:*:* Versions 3.8.0s Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_1023_router:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-5546
- 2026-10-03 Alias added: GHSA-cq3m-3v79-qmrp
References
More Cisco Asr 1001 vulnerabilities
- TI-2013-04740 Cisco IOS XE 3.9 before 3.9.2S on 1000 ASR devices allows remote attackers to cause a… CVSS 2.0HIGH 7.8
- TI-2013-04738 The PPTP ALG implementation in Cisco IOS XE 3.9 before 3.9.2S on 1000 ASR devices allows… CVSS 2.0HIGH 7.8
- TI-2013-04736 Cisco IOS XE 3.4 before 3.4.2S and 3.5 before 3.5.1S on 1000 ASR devices allows remote… CVSS 2.0HIGH 7.8
- TI-2013-02427 Cisco IOS XE 3.4 before 3.4.5S, and 3.5 through 3.7 before 3.7.1S, on 1000 series… CVSS 2.0HIGH 7.8
- TI-2013-01013 Cisco IOS XE 3.2 through 3.4 before 3.4.5S, and 3.5 through 3.7 before 3.7.1S, on 1000… CVSS 2.0HIGH 7.8
- TI-2013-01012 Cisco IOS XE 2.x and 3.x before 3.4.5S, and 3.5 through 3.7 before 3.7.1S, on 1000 series… CVSS 2.0HIGH 7.8
Sources
- CVE-2013-5546 · CVE Program
- CVE-2013-5546 · NVD
- FIRST EPSS
- GHSA-cq3m-3v79-qmrp · GitHub Advisory Database · CC BY 4.0
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