CVE-2026-111356

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

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 38.7% 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:N/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 2026-10-16.

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

2026-10-15 21:43Z13 DAYS AGO

Last updated

2026-10-16 16:49Z12 DAYS AGO

Reserved

2026-10-15

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/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

b2193772bdc7061e27a4cb03841dc8ebdfb7a560a098a22184b47ff8a6c5741c

• hackmd.iohttps://hackmd.io/@hieuPenguinnn/maccms10-password-reset-code-brute-force-account-takeoverthird-party-advisory
• github.comhttps://github.com/magicblack/maccms10/blob/v2026.1000.4056/application/common/model/User.php#L1199-L1231technical-description
• github.comhttps://github.com/magicblack/maccms10/blob/v2026.1000.4056/application/common/model/User.php#L1397-L1450technical-description
• github.comhttps://github.com/magicblack/maccms10product
• www.vulncheck.comVulnCheck Advisory: MacCMS v10 through 2026.1000.4056 Account Takeover via Password Recovery Brute-Forcehttps://www.vulncheck.com/advisories/maccms-v10-through-2026.1000.4056-account-takeover-via-password-recovery-brute-forcethird-party-advisory