CVE-2026-0708

Name: CVE-2026-0708
Creator: NVD / NIST
Published: 2026-03-17T04:16:07.75+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2026-0708 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A flaw was found in libucl. A remote attacker could exploit this by providing a specially crafted Universal Configuration Language (UCL) input that contains a key with an embedded null byte. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

A flaw was found in libucl. A remote attacker could exploit this by providing a specially crafted Universal Configuration Language (UCL) input that contains a key with an embedded null byte. This can cause a segmentation fault (SEGV fault) in the `ucl_object_emit` function when parsing and emitting the object, leading to a Denial of Service (DoS) for the affected system.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.39%

30.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Vstakhov	Libucl	<= 0.9.4

References

https://access.redhat.com/security/cve/CVE-2026-0708Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2427770Issue Tracking, Third Party Advisory
https://github.com/vstakhov/libucl/issues/323Exploit, Issue Tracking, Vendor Advisory
https://github.com/vstakhov/libucl/issues/323Exploit, Issue Tracking, Vendor Advisory

Timeline

Published: Mar 17, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-0708?

How severe is CVE-2026-0708?

CVE-2026-0708 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2026-0708?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-0708?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST