CVE-2023-30470

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 ImpacttotalSuccessful exploitation gives total 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

1.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 68.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2023-05-18 21:27Z3 YR AGO

Last updated

2025-01-21 20:09Z1 YR AGO

Reserved

2023-04-11

Assigning CNA

facebook

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

219536857caad5dbacb987df243536598d8d3cf76eaf19e2cfdae1492c106938

• www.facebook.comhttps://www.facebook.com/security/advisories/cve-2023-30470x_refsource_CONFIRM
• github.comhttps://github.com/facebook/hermes/commit/da8990f737ebb9d9810633502f65ed462b819c09x_refsource_MISC