CVE-2023-39928

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 70.8% of scored records. A rank, not a probability.

NVD base score

8.8 (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:H/A:H

NVD analysis status

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

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2023-10-06 15:17Z2 YR AGO

Last updated

2025-11-04 19:17Z10 MO AGO

Reserved

2023-08-14

Assigning CNA

talos

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

8835bdb85e013282ddd09e4f035ddb4a9af81259a558709411ce3e55b64a401b

• talosintelligence.comhttps://talosintelligence.com/vulnerability_reports/TALOS-2023-1831
• webkitgtk.orghttps://webkitgtk.org/security/WSA-2023-0009.html
• www.debian.orghttps://www.debian.org/security/2023/dsa-5527
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EEMDC5TQAANFH5D77QM34ZTUKXPFGVL/
• security.gentoo.orghttps://security.gentoo.org/glsa/202401-33
• www.talosintelligence.comhttps://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1831