HIGH
httpd in OpenBSD allows remote attackers to cause a denial of service (memory consumption) via a series of requests for a large file using an HTTP Range header
Published Mar 27, 2017
7.5
HIGHCVSS 3.0
EPSS 17.20%
Description
httpd in OpenBSD allows remote attackers to cause a denial of service (memory consumption) via a series of requests for a large file using an HTTP Range header.
Affected products
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:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
17.20% 0.17203
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.17203
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 17.20% (0.17203) | 97.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 17.20% (0.17203) | 96.69th | v5 (v2026.06.15) |
| Nov 21, 2025 | 49.59% (0.49590) | 97.66th | v4 (v2025.03.14) |
| Nov 18, 2025 | 42.73% (0.42725) | 97.32th | v4 (v2025.03.14) |
| Mar 30, 2025 | 49.59% (0.49590) | 97.57th | v4 (v2025.03.14) |
| Mar 29, 2025 | 57.22% (0.57217) | 97.32th | v4 (v2025.03.14) |
| Mar 19, 2025 | 49.59% (0.49590) | 97.47th | v4 (v2025.03.14) |
| Mar 17, 2025 | 43.49% (0.43490) | 97.21th | v4 (v2025.03.14) |
| Dec 17, 2024 | 6.51% (0.06512) | 93.66th | v3 (v2023.03.01) |
| Dec 12, 2024 | 1.90% (0.01896) | 88.99th | v3 (v2023.03.01) |
| Jul 1, 2023 | 1.90% (0.01896) | 86.89th | v3 (v2023.03.01) |
| May 23, 2023 | 2.63% (0.02629) | 88.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.34% (0.02345) | 88.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 18.33% (0.18327) | 96.32th | v2 (v2022.01.01) |
| Apr 1, 2022 | 18.33% (0.18327) | 95.99th | v2 (v2022.01.01) |
| Feb 4, 2022 | 18.33% (0.18327) | 93.57th | v2 (v2022.01.01) |
| Feb 3, 2022 | 15.16% (0.15163) | 90.00th | v1 |
| Jan 6, 2022 | 15.16% (0.15163) | 89.89th | v1 |
| Sep 1, 2021 | 15.16% (0.15163) | 97.22th | v1 |
| Apr 14, 2021 | 15.16% (0.15163) | 0.00th | v1 |
Weaknesses (1)
References (11)
- http://marc.info/?l=openbsd-cvs&m=148587359420912&w=2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/140944/OpenBSD-HTTP-Server-6.0-Denial-Of-Service.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2017/Feb/15 mailing-listx_refsource_FULLDISCThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2017/02/02/6 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95997 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037758 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/034_httpd.patch.sig x_refsource_CONFIRMPatchVendor Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/017_httpd.patch.sig x_refsource_CONFIRMPatchVendor Advisory
- https://github.com/openbsd/src/commit/142cfc82b932bc211218fbd7bdda8c7ce83f19df x_refsource_CONFIRMPatchThird Party Advisory
- https://pierrekim.github.io/blog/2017-02-07-openbsd-httpd-CVE-2017-5850.html x_refsource_MISCExploitPatchThird Party Advisory
- https://www.exploit-db.com/exploits/41278/ exploitx_refsource_EXPLOIT-DBPatchThird Party AdvisoryVDB Entry
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 27, 2017
Updated Aug 5, 2024
Reserved Feb 1, 2017
Link CVE-2017-5850
CISA Vulnrichment
Updated n/a