Goahead
CVE-2018-15505
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Null pointer safety, defensive checks
MITRE ATT&CK
1 technique across 1 tactic: Impact The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could crash the application by dereferencing a null pointer by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. 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 include: Embedthis Appweb, Embedthis Goahead, Juniper Junos. Version information: before 4.0.1.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)NVD
Embedthis GoAhead before 3.6.5 allows remote code execution if CGI is enabled and a CGI program is dynamically linked. R
EmbedThis GoAhead 3.0.0 through 3.4.1 does not properly handle path segments starting with a . Rated high severity (CVSS
A vulnerability in a custom-built GoAhead web server used on Foscam, Vstarcam, and multiple white-label IP camera models
An exploitable code execution vulnerability exists in the processing of multi-part/form-data requests within the base Go
A command-injection vulnerability exists in a web application on a custom-built GoAhead web server used on Foscam, Vstar
The HTTP Digest Authentication in the GoAhead web server before 5.1.2 does not completely protect against replay attacks
An issue was discovered in Embedthis GoAhead 2.5.0. Rated high severity (CVSS 8.6), this vulnerability is remotely explo
GoAhead 3.4.0 through 3.6.5 has a NULL Pointer Dereference in the websDecodeUrl function in http.c, leading to a crash f
A denial-of-service vulnerability exists in the processing of multi-part/form-data requests in the base GoAhead web serv
An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. Rated high severity (CVSS 7.5), this
An issue was discovered in GoAhead 4.x and 5.x before 5.1.5. Rated critical severity (CVSS 9.8), this vulnerability is r
Embedthis GoAhead before 5.0.1 mishandles redirected HTTP requests with a large Host header. Rated medium severity (CVSS
Exploit-DB