CVE-2026-54776

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 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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/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 22:04Z1 MO AGO

Last updated

2026-07-09 12:56Z1 MO AGO

Reserved

2026-06-15

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 4.4)

CNA CVSS vector

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

Weaknesses

• CWE-306Missing Authentication for Critical FunctionBase

Data version

5.2

Document digest

7b9c95766c4ba5b8a034e84743d3f092903fe7213c69e56907de5c2700ce6233

• github.comhttps://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-wjpq-6766-7f5jx_refsource_CONFIRM
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/994431268e3362c0cd126450fe2a135c202551f3x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/9af16955e51a57348dafce0019e259a092ef7440x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/f2f1a05927a88b8a75fa0582fa8ed75eb891e463x_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