CVE-2025-15099

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.80% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 53.9% of scored records. A rank, not a probability.

NVD base score

5.5 (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:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

Analyzed. NVD last modified this record on 2026-06-17.

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

2025-12-26 04:02Z8 MO AGO

Last updated

2025-12-26 15:04Z8 MO AGO

Reserved

2025-12-25

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass

Data version

5.2

Document digest

11268f95a25ecae7416afc0c938965fcc6ae12235b9d5246459450e33a3bc5bc

• vuldb.comVDB-338430 | simstudioai sim CRON Secret internal.ts improper authenticationhttps://vuldb.com/?id.338430vdb-entrytechnical-description
• vuldb.comVDB-338430 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.338430signaturepermissions-required
• vuldb.comSubmit #710255 | https://github.com/simstudioai https://github.com/simstudioai/sim ≤ v0.5.21 Authentication Bypass by Primary Weaknesshttps://vuldb.com/?submit.710255third-party-advisory
• gist.github.comhttps://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2related
• github.comhttps://github.com/simstudioai/sim/pull/2343issue-tracking
• gist.github.comhttps://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2#-steps-to-reproduceexploit
• github.comhttps://github.com/simstudioai/sim/commit/e359dc2946b12ed5e45a0ec9c95ecf91bd18502apatch