CVE-2021-4043

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• 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

4.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 91.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/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

2022-02-04 00:00Z4 YR AGO

Last updated

2024-11-08 04:55Z1 YR AGO

Reserved

2021-12-02

Assigning CNA

@huntrdev

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

3ab120ff4e6633cb6ec80ba20be225bb04fd762c3fb4fa3c25489f5c65e7f792

• huntr.devhttps://huntr.dev/bounties/d7a534cb-df7a-48ba-8ce3-46b1551a9c47
• github.comhttps://github.com/gpac/gpac/commit/64a2e1b799352ac7d7aad1989bc06e7b0f2b01db
• www.debian.orgDSA-5411https://www.debian.org/security/2023/dsa-5411vendor-advisory