CVE-2026-54733

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 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

0.88% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 56.2% of scored records. A rank, not a probability.

NVD base score

9.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-07-16.

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

2026-07-16 14:52Z1 MO AGO

Last updated

2026-07-16 15:35Z1 MO AGO

Reserved

2026-06-15

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.2

Document digest

715304cef1eb3c80f04f12c845d98f39ba40f1bd163618f80ddcef3eada0861a

• github.comhttps://github.com/microsoft/o365-moodle/security/advisories/GHSA-hqjh-93qv-47v5x_refsource_CONFIRM
• github.comhttps://github.com/microsoft/o365-moodle/commit/01b2d4c2e13b06a66557527084cbf9bace655944x_refsource_MISC
• github.comhttps://github.com/microsoft/o365-moodle/commit/258872f6e2011f4efa8ebb77d2898142a9435e89x_refsource_MISC
• github.comhttps://github.com/microsoft/o365-moodle/commit/d5596655f0baaee0f11aec2e10d6f36b0bd29220x_refsource_MISC
• github.comhttps://github.com/microsoft/o365-moodle/releases/tag/v20260423_m405x_refsource_MISC
• github.comhttps://github.com/microsoft/o365-moodle/releases/tag/v20260423_m500x_refsource_MISC
• github.comhttps://github.com/microsoft/o365-moodle/releases/tag/v20260423_m501x_refsource_MISC