CVE-2023-43887

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

0.98% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 59.7% of scored records. A rank, not a probability.

NVD base score

8.1 (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:H/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

2023-11-22 00:00Z2 YR AGO

Last updated

2024-11-26 19:41Z1 YR AGO

Reserved

2023-09-25

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

f0ff59ea2e78e0b394a6abfc7fd5fd55ff4cd2169075ef7a59246c3aa5842ae4

• github.comhttps://github.com/strukturag/libde265/issues/418
• github.comhttps://github.com/strukturag/libde265/commit/63b596c915977f038eafd7647d1db25488a8c133
• lists.debian.org[debian-lts-announce] 20231130 [SECURITY] [DLA 3676-1] libde265 security updatehttps://lists.debian.org/debian-lts-announce/2023/11/msg00032.htmlmailing-list