CVE-2014-4158: Stack-based buffer overflow in Kolibri 2.0 allows remote attackers to execute arbitrary code via a long URI in

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HIGH 7.5DOWNGRADE

CVE-2014-4158 is a high-severity flaw (CVSS 7.5) affecting kolibri. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in Kolibri 2.0 allows remote attackers to execute arbitrary code via a long URI in a GET request.

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	14.3% (top 3%)
CISA exploited list	No
Weakness	CWE-119
Published	2014-06-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: senkas

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

Am I affected?

Timeline

2014-06-13 14:55 UTCPublished CVE record published
2026-06-17 00:09 UTCUpdated Record last modified

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 kolibri || rpm -q kolibri || kolibri --version

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

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

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

dnf --showduplicates list kolibri sudo dnf downgrade kolibri-<VERSION_BEFORE_2.0> sudo dnf versionlock add 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 Web Server 2.0 - GET (SEH)
Exploit-DB: Kolibri Web Server 2.0 - GET Stack Buffer Overflow

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-2014-4158?

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

Is CVE-2014-4158 being exploited?

CVE-2014-4158 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-2014-4158 affect?

CVE-2014-4158 affects kolibri. Severity is high (CVSS 7.5). Stack-based buffer overflow in Kolibri 2.0 allows remote attackers to execute arbitrary code via a long URI in a GET request.

How urgent is CVE-2014-4158?

Priority 55/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2010-5301 HIGH 7.5 DOWNGRADE Stack-based buffer overflow in Kolibri 2.0 allows remote attackers to execute arbitrary code via a long URI in

References

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