CVE-2024-21909

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

1.06% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 64.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-07-14.

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

2024-01-03 15:41Z2 YR AGO

Last updated

2026-07-14 22:54Z3 MO AGO

Reserved

2024-01-03

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-407Inefficient Algorithmic ComplexityClass

Data version

5.2

Document digest

5ddc16cff4683f5a4f6620083e01adbe9edc84b8a3cabee4e27c0b096a933466

• github.comhttps://github.com/peteroupc/CBOR/security/advisories/GHSA-6r92-cgxc-r5fgvendor-advisory
• github.comhttps://github.com/peteroupc/CBOR/commit/b4117dbbb4cd5a4a963f9d0c9aa132f033e15b95patch
• github.comhttps://github.com/peteroupc/CBOR/compare/v4.5...v4.5.1related
• github.comhttps://github.com/advisories/GHSA-6r92-cgxc-r5fgvendor-advisory
• vulncheck.comhttps://vulncheck.com/advisories/vc-advisory-GHSA-6r92-cgxc-r5fgthird-party-advisory