CVE-2025-13776: Multiple Finka programs use hard-coded Firebird database credentials (shared across all instances of this soft

Q: How do I fix CVE-2025-13776?

finka-faktura: upgrade to 18.3; finka-fk: upgrade to 18.5; finka-kpr: upgrade to 16.6. Exact commands for each OS are on this page.

Q: Is CVE-2025-13776 being exploited?

CVE-2025-13776 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-13776 affect?

CVE-2025-13776 affects finka-faktura, finka-fk, finka-kpr. Severity is high (CVSS 7.1). Multiple Finka programs use hard-coded Firebird database credentials (shared across all instances of this software). A malicious attacker in local network who knows default credentials is able to read and edit database content. This vulner

Routine

HIGH 7.1UPGRADEUPGRADEUPGRADE

CVE-2025-13776 is a high-severity flaw (CVSS 7.1) affecting finka-faktura, finka-fk, finka-kpr. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple Finka programs use hard-coded Firebird database credentials (shared across all instances of this software). A malicious attacker in local network who knows default credentials is able to read and edit database content. This vulnerability has been fixed in version: Finka-FK 18.5, Finka-KPR 16.6, Finka-Płace 13.4, Finka-Faktura 18.3, Finka-Magazyn 8.3, Finka-STW 12.3

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 96%)
CISA exploited list	No
Weakness	CWE-798
Published	2026-02-24
Last modified	2026-06-17

Publisher (CNA): CERT.PL · Vendor: finka

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-24 17:29 UTCPublished CVE record published
2026-06-17 08:34 UTCUpdated Record last modified

finka finka-faktura UPGRADE

Affected: < 18.3

Fixed in: 18.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy finka-faktura || rpm -q finka-faktura || finka-faktura --version

2. UPGRADE to 18.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade finka-faktura

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade finka-faktura

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

finka finka-fk UPGRADE

Affected: < 18.5

Fixed in: 18.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy finka-fk || rpm -q finka-fk || finka-fk --version

2. UPGRADE to 18.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade finka-fk

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade finka-fk

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

finka finka-kpr UPGRADE

Affected: < 16.6

Fixed in: 16.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy finka-kpr || rpm -q finka-kpr || finka-kpr --version

2. UPGRADE to 16.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade finka-kpr

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade finka-kpr

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

finka finka-magazyn UPGRADE

Affected: < 8.3

Fixed in: 8.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy finka-magazyn || rpm -q finka-magazyn || finka-magazyn --version

2. UPGRADE to 8.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade finka-magazyn

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade finka-magazyn

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

finka finka-place UPGRADE

Affected: < 13.4

Fixed in: 13.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy finka-place || rpm -q finka-place || finka-place --version

2. UPGRADE to 13.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade finka-place

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade finka-place

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

finka finka-stw UPGRADE

Affected: < 12.3

Fixed in: 12.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy finka-stw || rpm -q finka-stw || finka-stw --version

2. UPGRADE to 12.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade finka-stw

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade finka-stw

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-13776?

finka-faktura: upgrade to 18.3; finka-fk: upgrade to 18.5; finka-kpr: upgrade to 16.6. Exact commands for each OS are on this page.

Is CVE-2025-13776 being exploited?

CVE-2025-13776 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-13776 affect?

CVE-2025-13776 affects finka-faktura, finka-fk, finka-kpr. Severity is high (CVSS 7.1). Multiple Finka programs use hard-coded Firebird database credentials (shared across all instances of this software). A malicious attacker in local network who knows default credentials is able to read and edit database content. This vulner

How urgent is CVE-2025-13776?

Priority 26/100. High severity

References

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