Cisco ASR 1000 devices with software before 3.8S, when BDI routing is enabled, allow…
Priority LOW 28CWE-20Published · Updated
Key facts
- Attack vector
- Adjacent 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
Cisco ASR 1000 devices with software before 3.8S, when BDI routing is enabled, allow remote attackers to cause a denial of service (device reload) via crafted (1) broadcast or (2) multicast ICMP packets with fragmentation, aka Bug ID CSCub55948.
Why it matters now
EPSS 0.00712 53rd 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 · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* | up to 3.7s\(.1\) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.6.0s:*:*:*:*:*:*:* | 3.6.0s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.6.1s:*:*:*:*:*:*:* | 3.6.1s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.6.2s:*:*:*:*:*:*:* | 3.6.2s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.6s\(.0\):*:*:*:*:*:*:* | 3.6s(.0) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.6s\(.1\):*:*:*:*:*:*:* | 3.6s(.1) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.6s\(.2\):*:*:*:*:*:*:* | 3.6s(.2) | Vulnerable | Cisco |
| 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:*:*:*:*:*:*:*:* Versions up to 3.7s\(.1\) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.6.0s:*:*:*:*:*:*:* Versions 3.6.0s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.6.1s:*:*:*:*:*:*:* Versions 3.6.1s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.6.2s:*:*:*:*:*:*:* Versions 3.6.2s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.6s\(.0\):*:*:*:*:*:*:* Versions 3.6s(.0) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.6s\(.1\):*:*:*:*:*:*:* Versions 3.6s(.1) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.6s\(.2\):*:*:*:*:*:*:* Versions 3.6s(.2) 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
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:3.7s\(.0\):*:*:*:*:*:*:* | 3.7s(.0) | 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_1002_fixed_router:-:*:*:*:*:*:*:* | 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_1013:-:*:*:*:*:*:*:* | 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:3.7s\(.0\):*:*:*:*:*:*:* Versions 3.7s(.0) 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_1002_fixed_router:-:*:*:*:*:*:*:* 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_1013:-:*:*:*:*:*:*:* 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-2012-5723
- 2026-10-03 Alias added: GHSA-q7c6-x96r-hrg8
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-2013-04739 The TCP reassembly feature in Cisco IOS XE 3.7 before 3.7.3S and 3.8 before 3.8.1S on… 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
Sources
- CVE-2012-5723 · CVE Program
- CVE-2012-5723 · NVD
- FIRST EPSS
- GHSA-q7c6-x96r-hrg8 · GitHub Advisory Database · CC BY 4.0
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