HIGH
An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2
Published Aug 18, 2018
7.5
HIGHCVSS 3.1
EPSS 2.23%
Description
An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. An HTTP POST request with a specially crafted "Host" header field may cause a NULL pointer dereference and thus cause a denial of service, as demonstrated by the lack of a trailing ']' character in an IPv6 address.
Affected products
No data.
Configuration 2
OR
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3x48
- 12.3x48
- 12.3x48
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- 12.3x48
- 12.3x48
- 12.3x48
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- 12.3x48
- 12.3x48
- 15.1
- 15.1
- 15.1
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- 15.1
- 15.1
- 15.1x49
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- 15.1x53
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- 16.1
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- 17.1
- 17.1
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- 17.2
- 17.2
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- 17.3
- 17.3
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- 17.3
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- 17.4
- 17.4
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- 17.4
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- 17.4
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- 17.4
- 17.4
- 17.4
- 18.1
- 18.1
- 18.1
- 18.1
- 18.1
- 18.1
- 18.1
- 18.1
- 18.1
- 18.1
- 18.1
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.
7.5 HIGH NVD
CVSS:3.1/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
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.
2.23% 0.02227
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.02227
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.23% (0.02227) | 82.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.23% (0.02227) | 80.36th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.27% (0.00272) | 68.27th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.27% (0.00272) | 67.04th | v3 (v2023.03.01) |
| Jan 8, 2024 | 0.27% (0.00272) | 64.51th | v3 (v2023.03.01) |
| Aug 11, 2023 | 0.37% (0.00370) | 69.06th | v3 (v2023.03.01) |
| Jun 23, 2023 | 0.31% (0.00310) | 65.77th | v3 (v2023.03.01) |
| Jun 14, 2023 | 0.35% (0.00354) | 67.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.27% (0.00271) | 62.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.10% (0.01100) | 29.06th | v1 |
| Jan 6, 2022 | 1.10% (0.01100) | 28.43th | v1 |
| Sep 1, 2021 | 1.10% (0.01100) | 65.99th | v1 |
| Apr 14, 2021 | 1.10% (0.01100) | 0.00th | v1 |
Weaknesses (1)
References (4)
- https://github.com/embedthis/appweb/commit/16e6979c82297d5fc4f8661e7ada975f51e4dfa9 PatchThird Party Advisory
- https://github.com/embedthis/appweb/issues/605 Broken LinkExploitIssue TrackingPatchThird Party Advisory
- https://github.com/embedthis/goahead/issues/264 Broken LinkExploitIssue TrackingPatchThird Party Advisory
- https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved?language=en_US Not Applicable
| Link | Providers | Tags |
|---|---|---|
| https://github.com/embedthis/appweb/commit/16e6979c82297d5fc4f8661e7ada975f51e4dfa9 | PatchThird Party Advisory | |
| https://github.com/embedthis/appweb/issues/605 | Broken LinkExploitIssue TrackingPatchThird Party Advisory | |
| https://github.com/embedthis/goahead/issues/264 | Broken LinkExploitIssue TrackingPatchThird Party Advisory | |
| https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved?language=en_US | Not Applicable |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 18, 2018
Updated Aug 5, 2024
Reserved Aug 17, 2018
Link CVE-2018-15505
CISA Vulnrichment
Updated n/a