Report · SecurityWeekAbout CVE-2025-47813Published 17 Mar 2026

CISA Flags Year-Old Wing FTP Vulnerability as Exploited

Source SecurityWeek

Authoritative record:CVE-2025-47813· Medium 4.3

Exploited in the wild · KEV due 30 Mar 2026 · public detection template (Nuclei) : apply the vendor's fix or mitigations to affected systems now.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score

4.3Medium

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

KEV deadline: 30 Mar 2026 US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
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: 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: 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.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

Disclosed: evidence found.
CVE published 10 Jul 2025
Detectable: evidence found.
nuclei template: Wing FTP Server <= 7.4.3 - Path Disclosure via Overlong UID Cookie
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 249 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

CVE ID reserved
by MITRE Corporation
10 May 2025, 61 days before disclosure
CVE published
on cve.org
10 Jul 2025, t = 0
In Threat Radar
record ingested
10 Jul 202517:01 UTC, the same day as disclosure
Added to CISA KEV (opens in a new tab)
exploitation confirmed
16 Mar 2026, 249 days after disclosure
KEV remediation due
US federal deadline
30 Mar 2026, 263 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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.

local

What to do

AI-suggested

Identify and inventory all Wing FTP Server instances within the organization to assess exposure.
Restrict access to Wing FTP Server instances using network segmentation, firewalls, and access control lists to limit exposure to trusted users and networks only.
Monitor server logs and network traffic for unusual access patterns or attempts to exploit the vulnerability, employing intrusion detection/prevention systems where possible.
Apply any available vendor patches or updates as soon as they are released; if no patches exist, engage with the vendor for guidance and timelines.
Implement strict authentication and authorization mechanisms to reduce the risk of unauthorized access to the FTP server.
Use application-layer firewalls or reverse proxies to filter and sanitize requests that might trigger the information disclosure.
Educate IT and security teams about the vulnerability and the importance of minimizing information leakage in server configurations.
Regularly review and harden FTP server configurations to disable unnecessary features and reduce attack surface.
Consider alternative secure file transfer solutions if Wing FTP Server cannot be adequately secured or patched promptly.
Maintain an incident response plan to quickly address any detected exploitation attempts related to this vulnerability.

Description

Tracked as CVE-2025-47813, the flaw leads to the disclosure of the full local installation path of the application. The post CISA Flags Year-Old Wing FTP Vulnerability as Exploited appeared first on SecurityWeek .

Impact

The primary impact of CVE-2025-47813 is the compromise of confidentiality through the disclosure of the full local installation path of Wing FTP Server. While this does not directly lead to system compromise, it provides attackers with valuable reconnaissance information that can be used to identify the software version, directory structure, and potential weaknesses in the deployment environment. This information can facilitate more sophisticated attacks such as privilege escalation, exploitation of other vulnerabilities, or lateral movement within the network. Organizations with internet-facing Wing FTP Servers or weak access controls are at higher risk. The exposure of installation paths can also aid in bypassing security mechanisms or crafting targeted phishing or social engineering attacks. The ongoing exploitation in the wild increases the urgency for organizations to address this vulnerability. Although the direct impact on integrity and availability is limited, the indirect consequences through chained attacks could be significant, especially in critical infrastructure or sensitive data environments. The medium severity rating reflects this balance between limited direct impact and potential for enabling further compromise.

References

securityweek.com/cisa-flags-year-old-wing-ftp-vulnerability-as-exploited/ (opens in a new tab)

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Exploitation evidence

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What to do

Description

AI analysisMachine-generated, updated 17 Mar 2026, 10:57 UTC

Public exploits and detectiona Nuclei detection template

References

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