CVE-2024-56431

Xiph Theora vulnerability

9.8 CRITICALEPSS 1.84%

Published25 Dec 2024

Description

oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift. NOTE: this is disputed by third parties because there is no evidence of a security impact, e.g., an application would not crash.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Xiph Theora< 1.2.0

Remediation

Fixed in

Xiph Theora≥ 1.2.0

Frequently asked

Is CVE-2024-56431 being actively exploited?

CVE-2024-56431 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.84%.

How severe is CVE-2024-56431?

CVE-2024-56431 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.84% probability of exploitation.

Which products are affected by CVE-2024-56431?

Affected products include Xiph Theora.

How do I fix CVE-2024-56431?

Upgrade affected software to a fixed version, for example Xiph Theora 1.2.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-56431 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.