CVE-2025-5606VulnerabilityPublished 4 Jun 2025

CVE-2025-5606: Tenda AC18 · Command Injection

Affects Tenda AC18Source CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 3.5% chance of exploitation in 30 days – higher than 89% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: Low
Vulnerable system availability: Low
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: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
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: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
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: 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 to the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to 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 4 Jun 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

Affected software

Product	Affected	Fixed in
Tenda AC18	Affected =15.03.05.05	Fixed in–

AI-suggested

Organizations should immediately inventory their network devices to identify any Tenda AC18 routers running the vulnerable firmware version 15.03.05.05. In the absence of an official patch, the following specific mitigations are recommended: 1) Restrict remote management access to the router by disabling WAN-side administration or limiting access to trusted IP addresses via firewall rules. 2) Change default or weak credentials to strong, unique passwords to reduce the risk of privilege escalation. 3) Monitor network traffic for unusual activity or command execution patterns related to the /goform/SetIPTVCfg endpoint. 4) If possible, segment the network to isolate the router from critical systems to limit potential lateral movement. 5) Engage with Tenda support or vendor channels to obtain firmware updates or advisories. 6) Consider replacing vulnerable devices with models that have confirmed security updates if patching is not feasible. 7) Implement intrusion detection systems (IDS) signatures to detect exploitation attempts targeting this vulnerability. These targeted actions go beyond generic advice by focusing on access control, monitoring, and network segmentation specific to the affected device and vulnerability.

Description

A vulnerability was found in Tenda AC18 15.03.05.05. It has been declared as critical. This vulnerability affects the function formSetIptv of the file /goform/SetIPTVCfg. The manipulation of the argument list leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Impact

For European organizations, this vulnerability poses a significant risk, especially for those relying on Tenda AC18 routers in their network infrastructure. Compromise of these routers could lead to unauthorized access to internal networks, interception or manipulation of IPTV streams, and potential lateral movement to critical systems. Given the router's role as a network gateway, exploitation could disrupt availability and confidentiality of communications. Organizations in sectors such as telecommunications, media providers, and enterprises using IPTV services are particularly at risk. The medium severity rating suggests that while the impact is not catastrophic, the ease of remote exploitation without user interaction or authentication makes it a viable attack vector. Additionally, the public disclosure of the exploit code increases the likelihood of opportunistic attacks targeting unpatched devices. This could lead to data breaches, service disruptions, and reputational damage for affected organizations.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Jul 2025, 18:54 UTC

Technical details

References

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