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 2.77%
Description
An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.
Affected products
No data.
Configuration 2
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OR
- 12.1x46
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- 15.1x49
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Running on/with
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Configuration 3
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OR
- 12.3
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Running on/with
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Configuration 4
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OR
- 15.1
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Running on/with
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Configuration 5
AND
OR
- 15.1x53
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Configuration 6
OR
- 15.1
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- 18.1
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- 18.4
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.
2.77% 0.02766
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02766
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 | 2.77% (0.02766) | 85.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.77% (0.02766) | 84.34th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.42% (0.00424) | 59.29th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.58% (0.12576) | 89.89th | v4 (v2025.03.14) |
| Mar 24, 2025 | 0.42% (0.00424) | 59.41th | v4 (v2025.03.14) |
| Mar 23, 2025 | 4.65% (0.04648) | 87.31th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.53% (0.00531) | 77.31th | v3 (v2023.03.01) |
| Mar 14, 2024 | 0.53% (0.00531) | 76.58th | v3 (v2023.03.01) |
| Jan 8, 2024 | 0.53% (0.00531) | 74.56th | v3 (v2023.03.01) |
| Aug 11, 2023 | 0.72% (0.00720) | 78.14th | v3 (v2023.03.01) |
| Jun 14, 2023 | 0.60% (0.00605) | 75.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.39% (0.00385) | 68.91th | 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 | 0.88% (0.00884) | 25.39th | v1 |
| Jan 6, 2022 | 0.88% (0.00884) | 24.77th | v1 |
| Sep 1, 2021 | 0.88% (0.00884) | 59.15th | v1 |
| Apr 14, 2021 | 0.88% (0.00884) | 0.00th | v1 |
Weaknesses (1)
References (5)
- https://github.com/embedthis/appweb/commit/66067ae6d1fa08b37a270e7dc1821df52ed2daef PatchThird Party Advisory
- https://github.com/embedthis/appweb/issues/605 ExploitPatchThird Party Advisory
- https://github.com/embedthis/goahead/issues/264 ExploitPatchThird Party Advisory
- https://supportportal.juniper.net/s/article/2019-07-Security-Bulletin-Junos-OS-J-Web-Denial-of-Service-due-to-multiple-vulnerabilities-in-Embedthis-Appweb-Server Third Party Advisory
- https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved Third Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/embedthis/appweb/commit/66067ae6d1fa08b37a270e7dc1821df52ed2daef | PatchThird Party Advisory | |
| https://github.com/embedthis/appweb/issues/605 | ExploitPatchThird Party Advisory | |
| https://github.com/embedthis/goahead/issues/264 | ExploitPatchThird Party Advisory | |
| https://supportportal.juniper.net/s/article/2019-07-Security-Bulletin-Junos-OS-J-Web-Denial-of-Service-due-to-multiple-vulnerabilities-in-Embedthis-Appweb-Server | Third Party Advisory | |
| https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved | Third Party Advisory |
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-2018-15504
CISA Vulnrichment
Updated n/a