MEDIUM
Cisco IOS XR 5.2.1 allows remote attackers to cause a denial of service (ipv6_io service reload) via a malformed IPv6 packet, aka Bug ID CSCuq95565
Published Jun 19, 2015
5.0
MEDIUMCVSS 2.0
EPSS 2.94%
Description
Cisco IOS XR 5.2.1 allows remote attackers to cause a denial of service (ipv6_io service reload) via a malformed IPv6 packet, aka Bug ID CSCuq95565.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.94% 0.02938
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02938
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 | 2.94% (0.02938) | 86.63th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.96% (0.02959) | 85.37th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.76% (0.00756) | 71.54th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.26% (0.00259) | 66.15th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.26% (0.00259) | 64.68th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00259) | 61.87th | 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://tools.cisco.com/security/center/viewAlert.x?alertId=39383 vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/75260 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1032615 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/viewAlert.x?alertId=39383 | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/75260 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1032615 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Jun 19, 2015
Updated Aug 6, 2024
Reserved Jun 4, 2015
Link CVE-2015-4191
CISA Vulnrichment
Updated n/a