CVE-2023-52339

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 65.4% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-01-12 00:00Z2 YR AGO

Last updated

2025-11-04 22:05Z11 MO AGO

Reserved

2024-01-12

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

7671cee37fd1478fe3827b99068fcada2630989d1efb7f4e95c078b6a7bb5127

• github.comhttps://github.com/Matroska-Org/libebml/issues/147
• github.comhttps://github.com/Matroska-Org/libebml/pull/148
• github.comhttps://github.com/Matroska-Org/libebml/blob/v1.x/NEWS.md
• github.comhttps://github.com/Matroska-Org/libebml/compare/release-1.4.4...release-1.4.5
• lists.fedoraproject.orgFEDORA-2024-ab879eeed1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BJUXVOIRWPP7OFYUKQZDNJTSLWCPIZBH/vendor-advisory
• lists.fedoraproject.orgFEDORA-2024-7261a9f668https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XNANFT4P6KL4WDQ3TV6QQ44NSC7WKLAB/vendor-advisory
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/01/msg00016.html
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BJUXVOIRWPP7OFYUKQZDNJTSLWCPIZBH/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XNANFT4P6KL4WDQ3TV6QQ44NSC7WKLAB/