CVE-2025-13826 | Zervit Portable Web Server Configuration Reset Request denial of service (EUVD-2025-209536)

VDB-358426 · CVE-2025-13826 · EUVD-2025-209536 ZERVIT PORTABLE WEB SERVER CONFIGURATION RESET REQUEST DENIAL OF SERVICE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 6.11+ Summaryinfo A vulnerability described as problematic has been identified in Zervit Portable Web Server. This affects an unknown part of the component Configuration Reset Request Handler. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2025-13826. The attack can be executed remotely. There is not any exploit available. Detailsinfo A vulnerability classified as problematic was found in Zervit Portable Web Server (unknown version). This vulnerability affects an unknown code block of the component Configuration Reset Request Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes: Zervit's portable HTTP/web server is vulnerable to remote DoS attacks when a configuration reset request is made. The vulnerability is caused by inadequate validation of user-supplied input. An attacker can exploit this vulnerability by sending malicious requests. If the vulnerability is successfully exploited, the application can be made to stop responding, resulting in a DoS condition. It is possible to manually restart the application. The weakness was released by Rafael Pedrero. The advisory is available at incibe.es. This vulnerability was named CVE-2025-13826 since 12/01/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-209536). Productinfo Type Web Server Vendor Zervit Name Portable Web Server CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.3 VulDB Base Score: 5.3 VulDB Temp Score: 5.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Denial of service CWE: CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 12/01/2025 CVE reserved 04/21/2026 +140 days Advisory disclosed 04/21/2026 +0 days VulDB entry created 04/21/2026 +0 days VulDB entry last update Sourcesinfo Advisory: incibe.es Researcher: Rafael Pedrero Status: Not defined CVE: CVE-2025-13826 (🔒) GCVE (CVE): GCVE-0-2025-13826 GCVE (VulDB): GCVE-100-358426 EUVD: 🔒 Entryinfo Created: 04/21/2026 11:29 Updated: 04/21/2026 12:53 Changes: 04/21/2026 11:29 (70), 04/21/2026 12:53 (1) Complete: 🔍 Cache ID: 99:3EB:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸