Vulnary
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Critical· 9.3

CVE-2025-52936

This vulnerability allows an attacker to read or write arbitrary files on a host running sslh before version 2.2.2 by following symbolic links. The flaw can be exploited locally with minimal effort and no user interaction, giving the attacker significant control over sensitive data.

publishedJun 23, 2025
last modifiedAug 1, 2026
sourcesNVD
severity · cvss
9.3
critical · how bad it is
exploitation · epss
<1%
6th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 15, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

sslh versions earlier than 2.2.2

02

Real-world impact

An attacker with local access could read confidential files such as passwords or configuration data, or modify them, potentially compromising the entire system.

03

Why this severity

The CVSS score of 9.3 reflects local access (AV:L), low attack complexity (AC:L), no user interaction (UI:N), and high impact on confidentiality, integrity, and availability (VC:H, VI:H, VA:L).

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

  1. Jun 23, 2025 · Jun 23, 2025
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Aug 1, 2026 · 4d ago
    Advisory updated
    The NVD record was last revised.
06

How it’s attacked

Attack vectorLocal
Attack complexityLow
Attack requirementsNone
Privileges requiredLow
User interactionNone needed
Confidentiality impactHigh
Integrity impactHigh
Availability impactLow
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →