VulnerabilityPublished 9 Jan 2024Updated 3 Jun 2025

CVE-2023-50643

Source CVE Database V5

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

9.8Critical

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 1.6% chance of exploitation in 30 days – higher than 76% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

AI-suggested

Given the absence of official patches, European organizations should implement immediate compensating controls. These include: 1) Restricting network access to endpoints running Evernote for MacOS, especially limiting inbound connections and isolating these devices within segmented network zones. 2) Employing endpoint detection and response (EDR) solutions to monitor for anomalous process executions, particularly those invoking Node.js or related components. 3) Temporarily disabling or uninstalling Evernote for MacOS 10.68.2 where feasible until a vendor patch is released. 4) Applying strict application whitelisting to prevent unauthorized code execution. 5) Enhancing monitoring of logs and network traffic for signs of exploitation attempts targeting Evernote clients. 6) Educating users about the risk and advising caution with network exposure and suspicious activity. 7) Collaborating with IT and security teams to prioritize patch management once updates become available. These targeted steps go beyond generic advice by focusing on the specific attack vector and components involved in this vulnerability.

Description

An issue in Evernote Evernote for MacOS v.10.68.2 allows a remote attacker to execute arbitrary code via the RunAsNode and enableNodeClilnspectArguments components.

Impact

For European organizations, this vulnerability poses a significant risk, especially those relying on Evernote for MacOS as part of their productivity or collaboration toolset. The ability for a remote attacker to execute arbitrary code without authentication or user interaction means that attackers can compromise endpoints silently and rapidly. This could lead to unauthorized access to sensitive corporate data, intellectual property theft, disruption of business operations, and potential lateral movement within corporate networks. Organizations in sectors such as finance, legal, consulting, and technology, which often use Evernote for note-taking and information sharing, are particularly at risk. Moreover, the vulnerability could be leveraged in targeted attacks or ransomware campaigns, amplifying the potential damage. The lack of patches at the time of disclosure increases the urgency for organizations to implement interim protective measures. Given the criticality and ease of exploitation, the threat could lead to widespread compromise if exploited at scale.

References

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 4 Jul 2025, 02:55 UTC

Technical details

References

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