CRITICAL
NfSen before 1.3.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in the customfmt parameter (aka the "Custom output format" field)
Published Jul 10, 2017
9.9
CRITICALCVSS 3.0
EPSS 6.55%
Description
NfSen before 1.3.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in the customfmt parameter (aka the "Custom output format" field).
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.9 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
9.0 HIGH NVD
AV:N/AC:L/Au:S/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.55% 0.06549
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06549
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (27 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.55% (0.06549) | 93.60th | v5 (v2026.06.15) |
| Sep 22, 2026 | 6.55% (0.06549) | 93.50th | v5 (v2026.06.15) |
| Sep 21, 2026 | 4.89% (0.04889) | 91.70th | v5 (v2026.06.15) |
| Sep 6, 2026 | 6.55% (0.06549) | 93.35th | v5 (v2026.06.15) |
| Sep 5, 2026 | 4.89% (0.04889) | 91.52th | v5 (v2026.06.15) |
| Aug 30, 2026 | 6.55% (0.06549) | 93.32th | v5 (v2026.06.15) |
| Aug 28, 2026 | 4.89% (0.04889) | 91.47th | v5 (v2026.06.15) |
| Aug 24, 2026 | 6.55% (0.06549) | 93.27th | v5 (v2026.06.15) |
| Aug 23, 2026 | 4.89% (0.04889) | 91.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.55% (0.06549) | 92.92th | v5 (v2026.06.15) |
| Nov 21, 2025 | 21.42% (0.21418) | 95.48th | v4 (v2025.03.14) |
| Nov 18, 2025 | 24.30% (0.24297) | 95.73th | v4 (v2025.03.14) |
| May 8, 2025 | 21.42% (0.21418) | 95.33th | v4 (v2025.03.14) |
| Mar 30, 2025 | 26.61% (0.26611) | 95.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 40.73% (0.40732) | 96.05th | v4 (v2025.03.14) |
| Mar 17, 2025 | 27.45% (0.27452) | 96.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00226) | 61.70th | v3 (v2023.03.01) |
| Sep 5, 2023 | 0.23% (0.00226) | 60.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00240) | 60.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.43% (0.03427) | 68.31th | v1 |
| Jan 6, 2022 | 3.43% (0.03427) | 68.01th | v1 |
| Sep 1, 2021 | 3.43% (0.03427) | 81.93th | v1 |
| Apr 14, 2021 | 3.43% (0.03427) | 0.00th | v1 |
Weaknesses (1)
References (2)
- https://sourceforge.net/p/nfsen/news/2017/01/nfsen-138-released---security-fix/ x_refsource_CONFIRMVendor Advisory
- https://www.exploit-db.com/exploits/42314/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://sourceforge.net/p/nfsen/news/2017/01/nfsen-138-released---security-fix/ | x_refsource_CONFIRMVendor Advisory | |
| https://www.exploit-db.com/exploits/42314/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jul 10, 2017
Updated Aug 5, 2024
Reserved Mar 17, 2017
Link CVE-2017-7175
CISA Vulnrichment
Updated n/a