A vulnerability in the upgrade process of Cisco Spark Board could allow an authenticated, local attacker to install an unverified upgrade package, aka Signature Verification Bypass
Published Nov 16, 2017
4.4
MEDIUMCVSS 3.0
EPSS 0.19%
Description
A vulnerability in the upgrade process of Cisco Spark Board could allow an authenticated, local attacker to install an unverified upgrade package, aka Signature Verification Bypass. The vulnerability is due to insufficient upgrade package validation. An attacker could exploit this vulnerability by providing the upgrade process with an upgrade package that the attacker controls. An exploit could allow the attacker to install custom firmware to the Spark Board. Cisco Bug IDs: CSCvf84502.
Affected products
- Vendor n/a Product Cisco Spark Board Defaultn/a
- Version Cisco Spark BoardStatusaffectedConstraints-
- 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 Spark Board | n/a |
|
- 2017-08-15
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:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
AV:L/AC:L/Au:N/C:N/I:P/A:N
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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.19% (0.00193) | 8.03th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.19% (0.00193) | 9.22th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00042) | 5.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.33% (0.00332) | 3.01th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.33% (0.00332) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/101914 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-spark x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101914 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-spark | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.