Cisco IOS before 15.1(1)SY1 allows remote authenticated users to cause a denial of…
Priority LOW 33CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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 IOS before 15.1(1)SY1 allows remote authenticated users to cause a denial of service (device reload) by establishing a VPN session and then sending malformed IKEv2 packets, aka Bug ID CSCub39268.
Why it matters now
EPSS 0.01536 74th 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:*:*:*:*:*:*:*:* | up to 15.1\(1\)sy | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* | 15.1 | 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_1023_router:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* Versions up to 15.1\(1\)sy Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* Versions 15.1 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_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-2012-5017
- 2026-10-03 Alias added: GHSA-jh5p-g73f-c3cw
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-2012-5017 · CVE Program
- CVE-2012-5017 · NVD
- FIRST EPSS
- GHSA-jh5p-g73f-c3cw · 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