Vulnary
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Critical· 9.8actively exploitedofficial fix available

CVE-2024-53704

A flaw in SonicWall’s SSLVPN authentication lets attackers log in without proper credentials. The vulnerability can be exploited from anywhere over the internet. It affects many SonicWall devices and versions.

publishedJan 9, 2025
last modifiedAug 4, 2026
sourcesNVD · CISA-KEV
severity · cvss
9.8
critical · how bad it is
exploitation · epss
95%
100th 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 3, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

SonicWall devices running Sonicos, including version 7.1.2-7019, and various NSA, NSSP, NSV, and TZ270 models.

02

Real-world impact

An attacker could gain full control of the affected device, read or modify configuration, and potentially access the network behind it.

03

Why this severity

The CVSS score of 9.8 reflects that the flaw can be exploited remotely with no authentication, giving an attacker complete control over the device.

04

What to do about it

official fix available
recommended steps
  1. 01Follow vendor instructions to apply the recommended mitigations for the affected SonicWall devices.
  2. 02If no mitigations are available, discontinue use of the product.

CISA KEV required action

05

Timeline

  1. Jan 9, 2025 · Jan 9, 2025
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Feb 18, 2025 · Feb 18, 2025
    Confirmed exploited (CISA KEV)
    CISA added it to the Known Exploited Vulnerabilities catalog — attackers are using it in the wild.
  3. Mar 11, 2025 · Mar 11, 2025
    CISA remediation deadline
    Federal agencies are required to remediate by this date.
  4. Aug 4, 2026 · 2d ago
    Advisory updated
    The NVD record was last revised.
  5. Aug 4, 2026 · 2d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗CISA KEV catalog ↗Search 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 →