CVE-2026-54873

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

0.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.7% 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

2026-09-30 20:11Z28 DAYS AGO

Reserved

2026-06-16

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

e3196daebbd0083a5361cac8395614aacd50eaa573afc9deb61818b18d816d22

• openssl-library.orgOpenSSL Advisoryhttps://openssl-library.org/news/secadv/20260929.txtvendor-advisory
• github.com4.0.3 git commithttps://github.com/openssl/openssl/commit/1f643b8bc735487b500a1f68a7fb3a22d5e38e23patch
• github.com3.6.5 git commithttps://github.com/openssl/openssl/commit/7127fb10888b49711c63128a09e524c0d2d5d0b2patch
• github.com3.5.9 git commithttps://github.com/openssl/openssl/commit/279e7ee1392af98785746788168749491c74bd53patch
• github.com3.4.8 git commithttps://github.com/openssl/openssl/commit/3ea6213e050e938ecbbf8c4eff32bec2736780ebpatch