CVE-2026-84784

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

0.60% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 48.7% 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

Analyzed. NVD last modified this record on 2026-10-08.

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

2026-09-29 15:32Z29 DAYS AGO

Last updated

2026-09-29 16:44Z29 DAYS AGO

Reserved

2026-09-02

Assigning CNA

openssl

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-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.2

Document digest

fcd773dbfa9bae69c29e18236eff51d963202c5dd662b9a09cdae684ed69ada1

• openssl-library.orgOpenSSL Advisoryhttps://openssl-library.org/news/secadv/20260929.txtvendor-advisory
• github.com4.0.3 git commithttps://github.com/openssl/openssl/commit/e9e5155833fa968bee50024bf9ca3a185ab599fepatch
• github.com3.6.5 git commithttps://github.com/openssl/openssl/commit/4685c914b0d410b1034f40b547c95bc95e7a380apatch
• github.com3.5.9 git commithttps://github.com/openssl/openssl/commit/dba3c48d653c64fcbc9070a17a0ee2b3e2f3af1fpatch
• github.com3.4.8 git commithttps://github.com/openssl/openssl/commit/9a30fe0fba195c14e5b87bf93c0d0fdb70373806patch