CVE-2025-8763VulnerabilityPublished 9 Aug 2025Updated 12 Aug 2025

CVE-2025-8763: Ruijie EG306MG · Missing Encryption of Sensitive Data

Affects Ruijie EG306MGSource CVE Database V5

Not known to be exploited · CVSS 6.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

6.3Medium

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X

Attack Vector: Network
Attack Complexity: High
Attack Requirements: None
Privileges Required: None
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: None
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

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

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, 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: High: The successful attack depends on the evasion or circumvention of security-enhancing techniques in place that would otherwise hinder the attack. These include: Evasion of exploit mitigation techniques, for example, circumvention of address space randomization (ASLR) or data execution prevention (DEP) must be performed for the attack to be successful; Obtaining target-specific secrets. The attacker must gather some target-specific secret before the attack can be successful. A secret is any piece of information that cannot be obtained through any amount of reconnaissance. To obtain the secret the attacker must perform additional attacks or break otherwise secure measures (e.g. knowledge of a secret key may be needed to break a crypto channel). This operation must be performed for each attacked target.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system 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 Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Aug 2025
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 2026-10-25.

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

AI-suggested

Given the absence of vendor patches, European organizations should take proactive and specific steps to mitigate this vulnerability: 1) Immediately audit network environments to identify any Ruijie EG306MG devices running the affected firmware version 3.0(1)B11P309. 2) Disable or avoid using aggressive mode with pre-shared keys in strongSwan configurations on these devices, as this is the root cause of the missing encryption. Instead, configure strongSwan to use more secure modes such as main mode with certificate-based authentication. 3) Restrict remote management and access to the affected devices by implementing strict firewall rules, VPN access controls, and network segmentation to limit exposure to untrusted networks. 4) Monitor network traffic for unusual or unauthorized access attempts targeting these devices, using intrusion detection/prevention systems (IDS/IPS) and security information and event management (SIEM) tools. 5) Consider replacing or upgrading affected devices to newer models or firmware versions once patches become available or if alternative secure solutions exist. 6) Educate network administrators about the risks of using aggressive mode PSK and enforce secure VPN configuration policies. 7) If possible, implement additional encryption layers or endpoint security measures to protect sensitive data in transit and at rest. These targeted mitigations go beyond generic advice by focusing on the specific vulnerable configuration and device context.

Description

A vulnerability was found in Ruijie EG306MG 3.0(1)B11P309. It has been rated as problematic. This issue affects some unknown processing of the file /etc/strongswan.conf of the component strongSwan. The manipulation of the argument i_dont_care_about_security_and_use_aggressive_mode_psk leads to missing encryption of sensitive data. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

For European organizations, the impact of CVE-2025-8763 could be significant in environments where Ruijie EG306MG devices are deployed, particularly in VPN infrastructures relying on strongSwan for secure communications. The missing encryption of sensitive data could lead to exposure of confidential information such as VPN credentials, session keys, or configuration details, potentially allowing attackers to intercept or decrypt VPN traffic. This compromises confidentiality and could facilitate further network intrusion or data exfiltration. Although exploitation is difficult, the remote attack vector means that attackers could attempt to leverage this vulnerability without physical access, increasing the risk surface. European organizations in sectors with high security requirements—such as finance, government, healthcare, and critical infrastructure—may face increased risks if these devices are part of their network security architecture. The lack of vendor response and absence of patches exacerbate the risk, as organizations cannot rely on official fixes and must implement compensating controls. Additionally, exposure of sensitive VPN data could violate European data protection regulations like GDPR if personal or sensitive data is compromised, leading to legal and reputational consequences.

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 17 Aug 2025, 00:59 UTC

Technical details

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