CVE-2017-6369

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.

Published: 2017-03-24 Last update: 2025-10-10 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-6369 is rated High Risk (66.9/100): CVSS High severity, with high exploitation likelihood (EPSS 8.85%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-6369

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-25 9.41% 8.85% -0.56%
2 2025-11-21 16.14% 9.41% -6.73%
3 2025-11-18 — 16.14% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-6369

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 6.4 [email protected]

Weakness enumeration for CVE-2017-6369

OS Trackers for CVE-2017-6369

vendor priority summary link
debian not yet assigned CVE-2017-6369 not yet assigned priority: Debian including 1 source packages (firebird3.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-6369
ubuntu medium CVE-2017-6369 medium priority: Ubuntu including 2 source packages (firebird2.5, firebird3.0), 32 status rows across 16 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, precise, trusty, upstream, xenial, yakkety, zesty): DNE 15, not-affected 9, ignored 4, released 3, needs-triage 1. https://ubuntu.com/security/CVE-2017-6369

Affected software / configurations for CVE-2017-6369

Vendor Product Version Raw CPE
firebirdsql firebird >= 2.5.0, < 2.5.7 cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*
firebirdsql firebird >= 3.0.0, < 3.0.2 cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*

References for CVE-2017-6369

URL Tags
http://tracker.firebirdsql.org/browse/CORE-5474 Issue Tracking Vendor Advisory
http://www.debian.org/security/2017/dsa-3824 Mailing List
http://www.securityfocus.com/bid/97070 Third Party Advisory VDB Entry
https://usn.ubuntu.com/3929-1/ Third Party Advisory
cvelogic Threat Intelligence