A vulnerability in the Autonomic Networking Infrastructure (ANI) registrar feature of Cisco IOS Software (possibly 15.2 through 15.6) and Cisco IOS XE Software (possibly 3.7 through 3.18, and 16) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition
Published Mar 21, 2017
7.4
HIGHCVSS 3.0
EPSS 0.76%
Description
A vulnerability in the Autonomic Networking Infrastructure (ANI) registrar feature of Cisco IOS Software (possibly 15.2 through 15.6) and Cisco IOS XE Software (possibly 3.7 through 3.18, and 16) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation on certain crafted packets. An attacker could exploit this vulnerability by sending a crafted autonomic network channel discovery packet to a device that has all the following characteristics: (1) running a Cisco IOS Software or Cisco IOS XE Software release that supports the ANI feature; (2) configured as an autonomic registrar; (3) has a whitelist configured. An exploit could allow the attacker to cause the affected device to reload. Note: Autonomic networking should be configured with a whitelist. Do not remove the whitelist as a workaround. Cisco Bug IDs: CSCvc42717.
Affected products
- Vendor n/a Product Cisco IOS and IOS XE Defaultn/a
- Version Cisco IOS and IOS XEStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Cisco IOS and IOS XE | n/a |
|
- 15.2\(3\)e
- 15.2\(3\)e1
- 15.2\(3\)e2
- 15.2\(3\)e3
- 15.2\(4\)e
- 15.2\(4\)e1
- 15.2\(4\)e2
- 15.2\(4\)e3
- 15.2\(5\)e
- 15.2\(5\)e1
- 15.2\(5a\)e
- 15.2\(5b\)e
- 15.3\(3\)s
- 15.3\(3\)s1
- 15.3\(3\)s2
- 15.3\(3\)s3
- 15.3\(3\)s4
- 15.3\(3\)s5
- 15.3\(3\)s6
- 15.3\(3\)s8
- 15.3\(3\)s9
- 15.4\(1\)s
- 15.4\(1\)s1
- 15.4\(1\)s2
- 15.4\(1\)s3
- 15.4\(1\)s4
- 15.4\(2\)s1
- 15.4\(2\)s2
- 15.4\(2\)s3
- 15.4\(2\)s4
- 15.4\(3\)s
- 15.4\(3\)s1
- 15.4\(3\)s2
- 15.4\(3\)s3
- 15.4\(3\)s4
- 15.4\(3\)s5
- 15.4\(3\)s6
- 15.4\(3\)s6a
- 15.5\(1\)s
- 15.5\(1\)s1
- 15.5\(1\)s2
- 15.5\(1\)s3
- 15.5\(1\)s4
- 15.5\(2\)s
- 15.5\(2\)s1
- 15.5\(2\)s2
- 15.5\(2\)s3
- 15.5\(2\)s4
- 15.5\(3\)s
- 15.5\(3\)s0a
- 15.5\(3\)s1
- 15.5\(3\)s1a
- 15.5\(3\)s2
- 15.5\(3\)s3
- 15.5\(3\)s4
- 15.5\(3\)s5
- 15.5\(3\)sn
- 15.6\(1\)s
- 15.6\(1\)s1
- 15.6\(1\)s2
- 15.6\(1\)s3
- 15.6\(1\)t
- 15.6\(1\)t0a
- 15.6\(1\)t1
- 15.6\(1\)t2
- 15.6\(2\)s
- 15.6\(2\)s1
- 15.6\(2\)s2
- 15.6\(2\)sn
- 15.6\(2\)sp
- 15.6\(2\)sp1
- 15.6\(2\)t
- 15.6\(2\)t1
- 15.6\(2\)t2
- 15.6\(3\)m
- 15.6\(3\)m0a
- 15.6\(3\)m1
- 3.7.0e
- 3.7.1e
- 3.7.2e
- 3.7.3e
- 3.7.4e
- 3.7.5e
- 3.8.0e
- 3.8.1e
- 3.8.2e
- 3.8.3e
- 3.9.0e
- 3.9.1e
- 3.10.0s
- 3.10.1s
- 3.10.1xbs
- 3.10.2s
- 3.10.2ts
- 3.10.3s
- 3.10.4s
- 3.10.5s
- 3.10.6s
- 3.10.7s
- 3.10.8as
- 3.10.8s
- 3.11.0s
- 3.11.1s
- 3.11.2s
- 3.11.3s
- 3.11.4s
- 3.12.0as
- 3.12.1s
- 3.12.2s
- 3.12.3s
- 3.12.4s
- 3.13.0as
- 3.13.0s
- 3.13.1s
- 3.13.2as
- 3.13.2s
- 3.13.3s
- 3.13.4s
- 3.13.5as
- 3.13.5s
- 3.13.6as
- 3.13.6s
- 3.14.0s
- 3.14.1s
- 3.14.2s
- 3.14.3s
- 3.14.4s
- 3.15.0s
- 3.15.1cs
- 3.15.1s
- 3.15.2s
- 3.15.3s
- 3.15.4s
- 3.16.0cs
- 3.16.0s
- 3.16.1as
- 3.16.1s
- 3.16.2bs
- 3.16.2s
- 3.16.3as
- 3.16.3s
- 3.16.4as
- 3.16.4bs
- 3.16.4ds
- 3.16.4s
- 3.16.5s
- 3.17.0s
- 3.17.1as
- 3.17.1s
- 3.17.2s
- 3.17.3s
- 3.18.0as
- 3.18.0s
- 3.18.0sp
- 3.18.1asp
- 3.18.1bsp
- 3.18.1csp
- 3.18.1s
- 3.18.1sp
- 3.18.2s
- 3.18.3vs
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AV:A/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.76% (0.00761) | 53.64th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.76% (0.00761) | 53.79th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00102) | 42.23th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.10% (0.00102) | 42.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00102) | 40.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01036) | 27.56th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/96972 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038064 vdb-entryx_refsource_SECTRACK
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170320-ani x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/96972 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038064 | vdb-entryx_refsource_SECTRACK | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170320-ani | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.