Is CVE-2026-34232 in the CISA KEV catalog?

No. CVE-2026-34232 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-34232?

CVE-2026-34232 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2026-34232?

CVE-2026-34232 has an EPSS score of 0.47% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34232?

Upgrade firebird3.0 on debian unstable to 3.0.14.ds7-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-34232

HIGH

7.5

CVSS v3

NVD

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 xdr_status_vector() function does not handle the isc_arg_cstring type when decoding an op_response packet, causing a server crash when one is encountered in the status vector. An unauthenticated attacker can exploit this by sending a crafted op_response packet to the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

CWE-228

How to fix

Remediation Available

firebird3.0Debian

Fixed in:3.0.14.ds7-1CVE-2026-34232

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.47%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Exploit1

github.com

Release Notes3

Related Vulnerabilities

Other CWE-228 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-5381	Medium	6.5	31%	-	Fix
CVE-2021-38443	Medium	6.6	2.2%	-	Fix
CVE-2020-27847	Critical	9.8	1.7%	-	Fix
CVE-2021-36199	Medium	5.3	1.0%	-	-
CVE-2026-42100	High	7.5	0.7%	-	-
CVE-2024-21612	High	7.5	0.5%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-27.