VulnerabilityPublished 31 Jan 2020Updated 30 May 2025

CVE-2020-8422: An authorization issue was discovered in the Credential Manager feature

Source CVE Database V5

Not known to be exploited · CVSS 4.3 Medium · fixed in 10.0.450 : update affected systems when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.0 base score

4.3Medium

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

EPSS: 1.3% chance of exploitation in 30 days – higher than 72% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 10.0.450

CVSS:3.0/AC:L/AV:N/A:N/C:L/I:N/PR:L/S:U/UI:N

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

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

Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
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).
Availability: None: There is no impact to availability within the impacted component.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
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.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 31 Jan 2020
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

Affected software

Product	Affected	Fixed in
n/a n/a	Affected <10.0.450	Fixed in 10.0.450

AI-suggested

To mitigate this vulnerability, European organizations should prioritize upgrading Zoho ManageEngine Remote Access Plus to version 10.0.450 or later, where the authorization issue is resolved. In the absence of an immediate patch, organizations should enforce strict access controls by limiting Guest role assignments only to trusted users and regularly auditing user roles and permissions. Network segmentation should be employed to restrict access to the Remote Access Plus interface, especially from untrusted networks. Implementing multi-factor authentication (MFA) for all user roles can reduce the risk of unauthorized Guest account access. Additionally, monitoring and logging access to credential management features can help detect anomalous activities indicative of exploitation attempts. Organizations should also review and minimize the number of stored credentials and ensure that sensitive credential information is encrypted and protected according to best practices. Finally, educating administrators and users about the risks of credential exposure and encouraging prompt reporting of suspicious activities will enhance overall security posture.

Description

An authorization issue was discovered in the Credential Manager feature in Zoho ManageEngine Remote Access Plus before 10.0.450. A user with the Guest role can extract the collection of all defined credentials of remote machines: the credential name, credential type, user name, domain/workgroup name, and description (but not the password).

Impact

For European organizations using Zoho ManageEngine Remote Access Plus, this vulnerability poses a moderate risk primarily related to information disclosure. Although passwords are not exposed, the leakage of credential metadata can aid attackers in mapping the remote access environment, identifying privileged accounts, and crafting more effective attacks. This is particularly concerning for organizations with complex IT infrastructures relying heavily on remote management tools. The exposure of domain/workgroup names and user names could assist in reconnaissance activities, potentially leading to targeted phishing or lateral movement attempts. While the direct impact on confidentiality is limited, the indirect risk of enabling further compromise is significant. Organizations in sectors with stringent data protection requirements, such as finance, healthcare, and critical infrastructure, may face compliance and reputational risks if such information is exploited. The vulnerability's exploitation does not require elevated privileges beyond Guest access, which may be easier to obtain in some environments, increasing the threat surface.

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 8 Jul 2025, 15:28 UTC

Technical details

References

Community reviews

Related threats