HIGH
The NTP implementation in Cisco IOS 15.1 and 15.5 and IOS XE 3.2 through 3.17 allows remote attackers to modify the system time via crafted packets, aka Bug ID CSCux46898
Published Apr 20, 2016
7.5
HIGHCVSS 3.0
EPSS 2.49%
Description
The NTP implementation in Cisco IOS 15.1 and 15.5 and IOS XE 3.2 through 3.17 allows remote attackers to modify the system time via crafted packets, aka Bug ID CSCux46898.
Affected products
No data.
Configuration 1
OR
- 15.1\(1\)s
- 15.1\(1\)s1
- 15.1\(1\)s2
- 15.1\(2\)s
- 15.1\(2\)s1
- 15.1\(2\)s2
- 15.1\(3\)s
- 15.1\(3\)s0a
- 15.1\(3\)s1
- 15.1\(3\)s2
- 15.1\(3\)s3
- 15.1\(3\)s4
- 15.1\(3\)s5
- 15.1\(3\)s5a
- 15.1\(3\)s6
- 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\(2\)t
- 15.5\(3\)m
- 15.5\(3\)m0a
- 15.5\(3\)m1
- 15.5\(3\)s
- 15.5\(3\)s0a
- 15.5\(3\)s1
- 15.5\(3\)s1a
- 15.5\(3\)sn
Configuration 2
OR
- 3.2.0ja
- 3.2.0s
- 3.2.0se
- 3.2.0sg
- 3.2.0xo
- 3.2.1s
- 3.2.1se
- 3.2.1sg
- 3.2.1xo
- 3.2.2s
- 3.2.2se
- 3.2.2sg
- 3.2.3s
- 3.2.3se
- 3.2.3sg
- 3.2.4sg
- 3.2.5sg
- 3.2.6sg
- 3.2.7sg
- 3.2.8sg
- 3.2.9sg
- 3.2.10sg
- 3.3.0s
- 3.3.0se
- 3.3.0sg
- 3.3.0sq
- 3.3.0xo
- 3.3.1s
- 3.3.1se
- 3.3.1sg
- 3.3.1sq
- 3.3.1xo
- 3.3.2s
- 3.3.2se
- 3.3.2sg
- 3.3.2xo
- 3.3.3se
- 3.3.4se
- 3.3.5se
- 3.4.0as
- 3.4.0s
- 3.4.0sg
- 3.4.0sq
- 3.4.1s
- 3.4.1sg
- 3.4.1sq
- 3.4.2s
- 3.4.2sg
- 3.4.3s
- 3.4.3sg
- 3.4.4s
- 3.4.4sg
- 3.4.5s
- 3.4.5sg
- 3.4.6s
- 3.4.6sg
- 3.4.7sg
- 3.5.0e
- 3.5.0s
- 3.5.0sq
- 3.5.1e
- 3.5.1s
- 3.5.1sq
- 3.5.2e
- 3.5.2s
- 3.5.2sq
- 3.5.3e
- 3.6.0e
- 3.6.0s
- 3.6.1e
- 3.6.1s
- 3.6.2ae
- 3.6.2e
- 3.6.2s
- 3.6.3e
- 3.6.4e
- 3.7.0bs
- 3.7.0e
- 3.7.0s
- 3.7.0xas
- 3.7.1as
- 3.7.1e
- 3.7.1s
- 3.7.2e
- 3.7.2s
- 3.7.2ts
- 3.7.3e
- 3.7.3s
- 3.7.4as
- 3.7.4s
- 3.7.5s
- 3.7.6s
- 3.7.7s
- 3.8.0e
- 3.8.0ex
- 3.8.0s
- 3.8.1e
- 3.8.1s
- 3.8.2s
- 3.9.0as
- 3.9.0s
- 3.9.1as
- 3.9.1s
- 3.9.2s
- 3.10.0as
- 3.10.0s
- 3.10.1s
- 3.10.01s
- 3.10.1xbs
- 3.10.2s
- 3.10.2ts
- 3.10.3s
- 3.10.4s
- 3.10.5s
- 3.10.6s
- 3.10.7s
- 3.11.0s
- 3.11.1s
- 3.11.2s
- 3.11.3s
- 3.11.4s
- 3.12.0as
- 3.12.0s
- 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
- 3.13.5s
- 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
- 3.16.0cs
- 3.16.0s
- 3.16.1as
- 3.16.1s
- 3.16.2as
- 3.16.2s
- 3.16.3s
- 3.17.0s
- 3.17.1s
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.49% 0.02489
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02489
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.49% (0.02489) | 84.06th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.49% (0.02489) | 82.50th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00280) | 49.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.28% (0.00279) | 69.19th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.28% (0.00279) | 67.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00279) | 63.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
Weaknesses (1)
References (3)
- http://www.securityfocus.com/bid/86685 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1035622 vdb-entryx_refsource_SECTRACK
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160419-ios vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/86685 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1035622 | vdb-entryx_refsource_SECTRACK | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160419-ios | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Apr 20, 2016
Updated Aug 5, 2024
Reserved Jan 4, 2016
Link CVE-2016-1384
CISA Vulnrichment
Updated n/a