CVE-2024-0854VulnerabilityPublished 24 Jan 2024Updated 30 May 2025

CVE-2024-0854: Synology DiskStation Manager (DSM) · Open Redirect

Affects Synology DiskStation Manager (DSM)Source CVE Database V5

Not known to be exploited · CVSS 5.4 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

5.4Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

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

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: 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.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
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: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 24 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 2026-10-26.

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 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
Synology DiskStation Manager (DSM)	Affected =7.2 =7.1 =7.0 =6.2	Fixed in–

AI-suggested

To mitigate the risks posed by CVE-2024-0854, European organizations should implement the following specific measures: 1) Immediately verify and apply any available Synology DSM updates or patches that address this vulnerability once released. 2) Restrict DSM access to trusted networks and enforce strong authentication mechanisms such as multi-factor authentication (MFA) to reduce the risk of account compromise. 3) Conduct a thorough review of user privileges and remove or limit access for users who do not require DSM access, minimizing the attack surface. 4) Implement web filtering and email security solutions to detect and block phishing attempts that exploit this open redirect vulnerability. 5) Educate users about the risks of phishing and the importance of verifying URLs, especially when accessing DSM resources. 6) Monitor DSM logs for unusual redirect requests or suspicious user activity that could indicate exploitation attempts. 7) Consider deploying web application firewalls (WAF) or reverse proxies that can detect and block open redirect patterns. 8) If possible, configure DSM to validate or restrict redirect URLs to trusted domains only, reducing the likelihood of malicious redirection. These targeted actions go beyond generic advice and focus on reducing both the likelihood and impact of exploitation.

Description

URL redirection to untrusted site ('Open Redirect') vulnerability in file access component in Synology DiskStation Manager (DSM) before 6.2.4-25556-8, 7.0.1-42218-7, 7.1.1-42962-7 and 7.2.1-69057-2 allows remote authenticated users to conduct phishing attacks via unspecified vectors.

Impact

For European organizations, the impact of CVE-2024-0854 can be significant, especially for those relying on Synology DSM for critical file storage and sharing. The open redirect vulnerability can facilitate sophisticated phishing attacks that exploit user trust in internal systems, increasing the risk of credential compromise and unauthorized access. Since the vulnerability requires authenticated access, insider threats or compromised user accounts could be leveraged to launch attacks against other users or external targets. Confidentiality and integrity of data could be at risk if attackers use the redirect to harvest credentials or deliver malware payloads. Although availability is not directly impacted, the indirect consequences of successful phishing could lead to broader security incidents, including lateral movement within networks or data exfiltration. European organizations with remote or hybrid workforces may be particularly vulnerable due to increased reliance on web-based access to NAS devices. Additionally, regulatory frameworks such as GDPR impose strict requirements on data protection, and any compromise resulting from this vulnerability could lead to compliance issues and reputational damage.

References

synology.com/en-global/security/advisory/Synology_SA_24_02 (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 8 Jul 2025, 19:43 UTC

Technical details

References

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