CVE-2026-53997

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

0.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 33.5% 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

2026-10-12 20:48Z16 DAYS AGO

Last updated

2026-10-15 13:47Z13 DAYS AGO

Reserved

2026-06-11

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
• CWE-640Weak Password Recovery Mechanism for Forgotten PasswordBase

Data version

5.2

Document digest

47a5fea79b01a171dd76976224f59a34ce2aadb87a3567d7c17f632b6555ec09

• beafn28.esResearcher Disclosurehttps://beafn28.es/articulos/cve-2026-53997technical-description
• netherman.appProduct Pagehttps://netherman.app/product
• www.vulncheck.comVulnCheck Advisory: Netherman Portal del Hermano Account Takeover via Password Reset Oraclehttps://www.vulncheck.com/advisories/netherman-portal-del-hermano-account-takeover-via-password-reset-oraclethird-party-advisory