CVE-2025-9513Network attack vector

Data disclosure via weak RSA handshake key

Published Aug 27, 2025 · Updated Aug 28, 2025

Inadequate encryption in editso Fuso 1.0.4-beta.0 through 1.0.4-beta.7 allows remote attackers to read protected data via a crafted key. The PenetrateRsaAndAesHandshake function in src/net/penetrate/handshake/mod.rs accepts a manipulated priv_key value without ensuring adequate cryptographic strength. Exploitation is unauthenticated and network-reachable but requires high attack complexity; published sources do not identify the exposed data or required key properties.

CVSS severity6.3
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inadequate encryption in editso Fuso 1.0.4-beta.0 through 1.0.4-beta.7 allows remote attackers to read protected data via a crafted key. The PenetrateRsaAndAesHandshake function in src/net/penetrate/handshake/mod.rs accepts a manipulated priv_key value without ensuring adequate cryptographic strength. Exploitation is unauthenticated and network-reachable but requires high attack complexity; published sources do not identify the exposed data or required key properties.

The record

CVE
CVE-2025-9513
Published
Aug 27, 2025
Updated
Aug 28, 2025
Vendor
editso
Product
Fuso
Classifications
CWE-326, CWE-310
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.4-beta.0
  2. Affected versionversion=1.0.4-beta.1
  3. Affected versionversion=1.0.4-beta.2
  4. Affected versionversion=1.0.4-beta.3
  5. Affected versionversion=1.0.4-beta.4
  6. Affected versionversion=1.0.4-beta.5
  7. Affected versionversion=1.0.4-beta.6
  8. Affected versionversion=1.0.4-beta.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

editso · Fusoversion=1.0.4-beta.0; version=1.0.4-beta.1; version=1.0.4-beta.2; version=1.0.4-beta.3; version=1.0.4-beta.4; version=1.0.4-beta.5; version=1.0.4-beta.6; version=1.0.4-beta.7

Published CVSS scores

3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-326Inadequate Encryption Strength
CWE-310Cryptographic Issues

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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