Dashboard / CVE-2026-28214

CVE-2026-28214

MEDIUM
MEDIUM Priority: 0.07 BB Relevance: 62/100
Published: 2026-04-17 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: Present
VC: None
VI: None
VA: High

Description

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the ClumpletReader::getClumpletSize() function can overflow the totalLength value when parsing a Wide type clumplet, causing an infinite loop. An authenticated user with INSERT privileges on any table can exploit this via a crafted Batch Parameter Block to cause a denial of service against the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

Weakness Classification (2)

Affected Software (3)

VendorProductVersion
firebirdsql firebird < 3.0.14
firebirdsql firebird 4.0.0 – 4.0.7
firebirdsql firebird 5.0.0 – 5.0.4

References & Advisories (4)

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.0 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

1.13%
Raw Score 0.011330
Percentile 66.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01133
2026-10-28
0.01133

Intelligence Sources

nvd ref →

External Links