The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS…
Priority LOW 29CWE-119Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS 15.3(3)S0.1 on ASR devices mishandles internal tables, which allows remote attackers to cause a denial of service (memory consumption or device crash) via a flood of crafted ND messages, aka Bug ID CSCup28217.
Why it matters now
EPSS 0.00905 60th 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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios:15.2\(4\)e:*:*:*:*:*:*:* | 15.2(4)e | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.2\(4\)pi:*:*:*:*:*:*:* | 15.2(4)pi | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.2\(4\)st:*:*:*:*:*:*:* | 15.2(4)st | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.2\(5\)st:*:*:*:*:*:*:* | 15.2(5)st | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.3\(3\)s0.1:*:*:*:*:*:*:* | 15.3(3)s0.1 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios:15.2\(4\)e:*:*:*:*:*:*:* Versions 15.2(4)e Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.2\(4\)pi:*:*:*:*:*:*:* Versions 15.2(4)pi Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.2\(4\)st:*:*:*:*:*:*:* Versions 15.2(4)st Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.2\(5\)st:*:*:*:*:*:*:* Versions 15.2(5)st Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.3\(3\)s0.1:*:*:*:*:*:*:* Versions 15.3(3)s0.1 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-6359
- 2026-10-03 Alias added: GHSA-pm63-3g3f-98wc
References
More Cisco Ios vulnerabilities
- TI-2018-00138 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
- TI-2017-09019 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
- TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
- TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
- TI-2017-04499 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
- TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2015-6359 · CVE Program
- CVE-2015-6359 · NVD
- FIRST EPSS
- GHSA-pm63-3g3f-98wc · 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