CVE-2014-5289: Buffer overflow in Senkas Kolibri 2.0 allows remote attackers to execute arbitrary code via a long URI in a PO

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2014-5289 is a critical-severity flaw (CVSS 9.8) affecting senkas kolibri. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Senkas Kolibri 2.0 allows remote attackers to execute arbitrary code via a long URI in a POST request.

Why this priority

Critical severity
EPSS top 4%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	12.0% (top 4%)
CISA exploited list	No
Weakness	CWE-20
Published	2019-12-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: senkas kolibri project

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

Am I affected?

Timeline

2019-12-27 21:15 UTCPublished CVE record published
2026-06-17 00:11 UTCUpdated Record last modified

senkas kolibri project senkas kolibri DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy senkas-kolibri || rpm -q senkas-kolibri || senkas-kolibri --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison senkas-kolibri sudo apt install senkas-kolibri=<VERSION_BEFORE_2.0> sudo apt-mark hold senkas-kolibri

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list senkas-kolibri sudo dnf downgrade senkas-kolibri-<VERSION_BEFORE_2.0> sudo dnf versionlock add senkas-kolibri

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Kolibri WebServer 2.0 - Remote Buffer Overflow (EMET 5.0 / EMET 4.1 Partial Bypass)

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-2014-5289?

senkas kolibri: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-5289 being exploited?

CVE-2014-5289 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-2014-5289 affect?

CVE-2014-5289 affects senkas kolibri. Severity is critical (CVSS 9.8). Buffer overflow in Senkas Kolibri 2.0 allows remote attackers to execute arbitrary code via a long URI in a POST request.

How urgent is CVE-2014-5289?

Priority 68/100. Critical severity; EPSS top 4%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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