CVE-2026-54781

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-07-09.

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

2026-07-08 22:19Z1 MO AGO

Last updated

2026-07-09 14:40Z1 MO AGO

Reserved

2026-06-15

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.4)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass
• CWE-345Insufficient Verification of Data AuthenticityClass

Data version

5.2

Document digest

8361d462b2122354582bded0221a031168bf2bbb11af8610a16a35e790c776f8

• github.comhttps://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-48pq-2xq3-c2m4x_refsource_CONFIRM
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/6a99df3242f54acd6f89edfd6050430b72d0c685x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/86dd3232b6b8aaf32281be9e8d798afad6145d58x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/9eb9b46d1c2af06fb71f656a02f4d5b4649c1f03x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1x_refsource_MISC