CVE-2026-111675

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/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

Deferred. NVD last modified this record on 2026-10-19.

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

2026-10-16 17:39Z12 DAYS AGO

Last updated

2026-10-19 13:27Z9 DAYS AGO

Reserved

2026-10-16

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-307Improper Restriction of Excessive Authentication AttemptsBase

Data version

5.2

Document digest

b6df87ecb5daaf9b96ec15c88b9b782528563cbb5408ef2caca8cfd4ae7b58e1

• hackmd.iohttps://hackmd.io/@hieuPenguinnn/ctc-verify-code-brute-force-account-takeoverthird-party-advisory
• github.comhttps://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Verify.php#L27-L73technical-description
• github.comhttps://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Logic/Account/PasswordReset.phptechnical-description
• www.vulncheck.comVulnCheck Advisory: Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeoverhttps://www.vulncheck.com/advisories/course-tencent-cloud-through-2.0.1-verification-code-brute-force-account-takeoverthird-party-advisory