Cyber Resilience

CVE-2025-9801

Path Traversal in Sim ≤ 0.3.40

Public PoCPath Traversal
Published
01 September 2025
Modified
17 June 2026
Patch / advisory
CVSS Score v4 2.1
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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
EPSS Score 0.0072 50th percentile
Risk Priority 28 floored blend · peak EPSS

Summary

CVE-2025-9801 is a low-severity Path Traversal (CWE-22) vulnerability in Sim Sim. Its CVSS base score is 2.1 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 50% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-9801 is a path traversal vulnerability (CWE-22) in SimStudioAI's sim software, affecting commits up to ed9b9ad83f1a7c61f4392787fb51837d34eeb0af. The flaw stems from manipulation of the filePath argument in an unknown component, enabling attackers to access or manipulate files outside the intended directory. It carries a CVSS v3.1 base score of 5.4 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L) and was published on 2025-09-01.

Remote exploitation is possible by low-privileged users (PR:L) over the network with low attack complexity and no user interaction. Attackers can achieve limited impacts on integrity (I:L) and availability (A:L), such as reading, writing, or deleting arbitrary files via traversed paths, while confidentiality remains unaffected.

Advisories recommend deploying the patch at commit 45372aece5e05e04b417442417416a52e90ba174 to remediate the issue. Due to the product's rolling release model, no specific version numbers are provided for affected or fixed builds. Details are available in GitHub issue #959 and related comments.

The exploit has been publicly disclosed and may be used in the wild.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A security vulnerability has been detected in SimStudioAI sim up to ed9b9ad83f1a7c61f4392787fb51837d34eeb0af. This affects an unknown part. The manipulation of the argument filePath leads to path traversal. Remote exploitation of the attack is possible. The exploit has been disclosed publicly…

more

and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The identifier of the patch is 45372aece5e05e04b417442417416a52e90ba174. To fix this issue, it is recommended to deploy a patch.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-7107Same product: Sim Sim
CVE-2025-21048Shared CWE-22
CVE-2026-23939Shared CWE-22
CVE-2024-7145Shared CWE-22
CVE-2023-42225Shared CWE-22
CVE-2024-33109Shared CWE-22
CVE-2023-35016Shared CWE-22
CVE-2025-10723Shared CWE-22
CVE-2023-1163Shared CWE-22
CVE-2024-43996Shared CWE-22

Affected Assets

sim
sim
≤ 0.3.40

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Mitigating Controls (NIST 800-53 r5) AI

Enforces the intended directory access authorizations that path traversal would otherwise bypass.

Input validation directly neutralizes special path elements before pathname construction occurs.

Least privilege reduces the impact of any unauthorized file access obtained via traversal.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-02 partial match
prevents

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

PR.AA-05 none match
prevents

PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development catches path traversal via static/dynamic analysis.

prevents

Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.

prevents

Application security requirements include rules for safe file handling and canonicalization.

prevents

Secure architecture principles require least-privilege file access and directory isolation.

prevents

Secure coding standards explicitly forbid unsafe path construction and mandate safe APIs.

mitigates

Information access restriction limits which files an application may read or write.

References