CVE-2026-54783

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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 9.0% 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 2026-07-10.

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 22:16Z1 MO AGO

Last updated

2026-07-10 03:55Z1 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-294Authentication Bypass by Capture-replayBase
• CWE-345Insufficient Verification of Data AuthenticityClass
• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.2

Document digest

7e9857e4f6df8c3592fa40a6a0646e3604d2db04e0a7dfb9eb1675d9e655edf3

• github.comhttps://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-gqv6-pwcg-87r8x_refsource_CONFIRM
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/0589692d4b9a41d21b34ac48281e95f6df7f4ce5x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/30aef805270976c42477e3f2a05f4e563d86e247x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/4618f24165ad018ad3ed2636bf8c3bc87d2a3be2x_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