Firebird
CVE-2017-6369
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 3.27%. |
| Exploit ScenarioDerived | A remote attacker could access resources or perform actions without proper authorization checks by sending crafted requests to the affected application. |
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Alert meAnalysisAI
Insufficient checks in the UDF subsystem in Firebird 2.5.x before 2.5.7 and 3.0.x before 3.0.2 allow remote authenticated users to execute code by using a 'system' entrypoint from fbudf.so. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.
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 Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. Insufficient checks in the UDF subsystem in Firebird 2.5.x before 2.5.7 and 3.0.x before 3.0.2 allow remote authenticated users to execute code by using a 'system' entrypoint from fbudf.so. Affected products include: Firebirdsql Firebird. Version information: before 2.5.7.
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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:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Insufficient checks in the UDF subsystem in Firebird 2.5.x before 2.5.7 and 3.0.x before 3.0.2 allow remote authenticated users to execute code by using a 'system' entrypoint from fbudf.so.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
Stack-based buffer overflow in Firebird 2.1.3 through 2.1.5 before 18514, and 2.5.1 through 2.5.3 before 26623, on Windo
Firebird is a relational database. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable. Public ex
FireBird 2.5.5 allows remote authenticated users to cause a denial of service (daemon crash) by using service manager to
Remote code execution in Firebird RDBMS versions prior to 5.0.4, 4.0.7, and 3.0.14 allows authenticated users with CREAT
The xdr_status_vector function in Firebird before 2.1.7 and 2.5.x before 2.5.3 SU1 allows remote attackers to cause a de
Null pointer dereference in Firebird SQL server causes remote denial-of-service when unauthenticated attackers send malf
Remote denial-of-service in Firebird database server versions prior to 5.0.4, 4.0.7, and 3.0.14 allows unauthenticated n
Firebird database server crashes via crafted slice packet exploiting zero-length SDL descriptor validation flaw. Remote
Remote denial-of-service in Firebird Database Server versions prior to 5.0.4, 4.0.7, and 3.0.14 allows unauthenticated n
Buffer overflow in Firebird RDBMS allows remote unauthenticated attackers to crash database servers via malformed slice
Remote unauthenticated denial of service in Firebird SQL database server versions prior to 6.0.0/5.0.4/4.0.7/3.0.14 allo
Firebird 3.x client libraries leak adjacent memory contents when an application using the FB3 client connects to a Fireb
GitHub PoC
Exploit-DB