PT-2026-33479 · Firebird+1 · Firebird+1
CVE-2026-28214
·
Published
2026-04-17
·
Updated
2026-05-15
CVSS v3.1
9.9
Critical
| Vector | AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Firebird versions prior to 5.0.4
Firebird versions prior to 4.0.7
Firebird versions prior to 3.0.14
Description
The
ClumpletReader::getClumpletSize() function can overflow the totalLength value when parsing a Wide type clumplet, leading to an infinite loop. An authenticated user with INSERT privileges on any table can exploit this by using a crafted Batch Parameter Block to cause a denial of service against the server.Recommendations
Update to version 5.0.4
Update to version 4.0.7
Update to version 3.0.14
Exploit
Fix
DoS
Infinite Loop
Integer Overflow
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Related Identifiers
Affected Products
Firebird
Red Os