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NVD / CVE Program· CNA cisa-cg

CVE-2024-1709: Authentication bypass using an alternate path or channel

CriticalCVSS 10.0 · v3.1KEVWeaponized Fix available

Noroxi assessment

Priority: Now (action score 100/100)

  • CISA has confirmed exploitation in the wild (Feb 22, 2024); it is known to be used in ransomware campaigns. Remediation deadline for US federal agencies: Feb 29, 2024.
  • A ready-made attack module is public (Metasploit, Nuclei); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 99.9% (FIRST EPSS); higher than 99.9% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: ConnectWise ScreenConnect 23.9.8.

Patch today or shut off access. Upgrade to ConnectWise ScreenConnect 23.9.8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel vulnerability, which may allow an attacker direct access to confidential information or critical systems.

Published
Feb 21, 2024
Updated
Jun 17, 2026
EPSS
99.9% · 99th percentile

Report tools

JSON

Action score

100

Now

Patch today or shut off access.

CVSS
40 / 40 · 10.0 / 10
CISA KEV
30 / 30 · Listed
EPSS
30 / 30 · 99.9%

CISA SSVC decision

Exploitation
active
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
10.0
CNA · cisa-cg
10.0
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Feb 22, 2024. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Feb 29, 2024.

Known to be used in ransomware campaigns.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-1709

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
connectwisescreenconnect

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisa-cg). Independent of NVD's CPE analysis and usually ahead of it.

  • ConnectWise ScreenConnect

    • up to and including 23.9.7affectedfixed in 23.9.8

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • connectwise screenconnectbefore 23.9.8

Same product

connectwise: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-1708Improper limitation of a pathname to a restricted directory (“path traversal”)KEV
    92Now
  • CVE-2026-84869ScreenConnect Client: Guest-to-Host File Execution via File-Transfer ActionsKEV
    69This week
  • CVE-2025-3935ScreenConnect Exposure to ASP.NET ViewState Code InjectionKEV
    59Plan

Published before and after this one in the same product

  • ← EarlierCVE-2022-36781Sep 28, 2022 · ConnectWise - ScreenConnect Session Code Bypass
    21Monitor
  • Later →CVE-2025-14265Dec 11, 2025 · Improper server-side validation in ScreenConnect extension framework
    36Monitor
  • Later →CVE-2025-14823Dec 18, 2025 · Certificate Signing Extension Returns Encrypted Values
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
ConnectWise ScreenConnect23.9.8Vendor (CNA)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×5

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHub5 repositories2024-02-21 → 2024-09-12
Metasploit moduleexploit/multi/http/connectwise_screenconnect_rce_cve_2024_1709ConnectWise ScreenConnect Unauthenticated Remote Code Executionexploit2024-02-19
Nuclei detection templateNuclei template CVE-2024-1709 —

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Metasploit-3 d
  2. First PoC-1 d
  3. Published
  4. CISA KEVsame day
  5. TodayNov 14, 2026+997 d

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2024-17080 days apartImproper limitation of a pathname to a restricted directory (“path traversal”)KEV
    92Now

Not on record for this CVE: EPSS history · researcher credit · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-288 · Authentication Bypass Using an Alternate Path or Channel

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records