Input validation issue in Buffalo BBR-4HG and and BBR-4MG broadband routers with firmware 1.00 to 1.48 and 2.00 to 2.07 allows an attacker to cause the device to become unresponsive via unspecified vectors
Published Dec 8, 2017
4.5
MEDIUMCVSS 3.0
EPSS 0.45%
Description
Input validation issue in Buffalo BBR-4HG and and BBR-4MG broadband routers with firmware 1.00 to 1.48 and 2.00 to 2.07 allows an attacker to cause the device to become unresponsive via unspecified vectors.
Affected products
-
- Version firmware 1.00 to 1.48StatusaffectedConstraints-
- Version firmware 2.00 to 2.07StatusaffectedConstraints-
- Version
-
- Version firmware 1.00 to 1.48StatusaffectedConstraints-
- Version firmware 2.00 to 2.07StatusaffectedConstraints-
- 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Buffalo Inc. | Bbr-4hg | n/a |
| |||||||||
| Buffalo Inc. | Bbr-4mg | n/a |
|
Configuration 1
- ≥ 1.00 · ≤ 1.48
- ≥ 2.00 · ≤ 2.07
Configuration 2
- ≥ 1.00 · ≤ 1.48
- ≥ 2.00 · ≤ 2.07
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:H/UI:N/S:U/C:N/I:N/A:H
AV:A/AC:L/Au:S/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 | 0.45% (0.00449) | 36.72th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.45% (0.00449) | 38.41th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00044) | 12.95th | v3 (v2023.03.01) |
| May 25, 2024 | 0.04% (0.00044) | 12.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.26th | 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 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://buffalo.jp/support_s/s20171201.html x_refsource_CONFIRMPatchVendor Advisory
- https://jvn.jp/en/jp/JVN65994435/index.html third-party-advisoryx_refsource_JVNThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://buffalo.jp/support_s/s20171201.html | x_refsource_CONFIRMPatchVendor Advisory | |
| https://jvn.jp/en/jp/JVN65994435/index.html | third-party-advisoryx_refsource_JVNThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.