CVE-2018-25235 | NetworkActiv Web Server 4.0 Pre-Alpha-3.7.2 Set Username Interface out-of-bounds write (Exploit 45302 / EUVD-2018-21727)

VDB-354180 · CVE-2018-25235 · EXPLOIT 45302 NETWORKACTIV WEB SERVER 4.0 PRE-ALPHA-3.7.2 SET USERNAME INTERFACE OUT-OF-BOUNDS WRITE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.6 $0-$5k 2.67+ Summaryinfo A vulnerability categorized as critical has been discovered in NetworkActiv Web Server 4.0 Pre-Alpha-3.7.2. This affects an unknown part of the component Set Username Interface. The manipulation of the argument Username results in out-of-bounds write. This vulnerability is known as CVE-2018-25235. Attacking locally is a requirement. Furthermore, an exploit is available. Detailsinfo A vulnerability, which was classified as problematic, was found in NetworkActiv Web Server 4.0 Pre-Alpha-3.7.2. Affected is an unknown functionality of the component Set Username Interface. The manipulation of the argument username with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes: NetworkActiv Web Server 4.0 contains a buffer overflow vulnerability in the username field of the Security options that allows local attackers to crash the application by supplying an excessively long string. Attackers can trigger a denial of service by entering a crafted username value exceeding the expected buffer size through the Set username interface. The weakness was published by Victor Mondragón as 45302. The advisory is shared for download at exploit-db.com. This vulnerability is traded as CVE-2018-25235 since 03/30/2026. The exploitability is told to be easy. The attack needs to be approached locally. Technical details and a public exploit are known. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. 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 databases at Exploit-DB (45302) and EUVD (EUVD-2018-21727). Productinfo Type Web Server Name NetworkActiv Web Server Version 4.0 Pre-Alpha-3.7.2 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: 4.7 VulDB Meta Temp Score: 4.6 VulDB Base Score: 3.3 VulDB Temp Score: 3.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.2 CNA Vector (VulnCheck): 🔒 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: Out-of-bounds write CWE: CWE-787 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Exploit-DB: 🔒 Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/30/2026 Advisory disclosed 03/30/2026 +0 days CVE reserved 03/30/2026 +0 days VulDB entry created 03/30/2026 +0 days VulDB entry last update Sourcesinfo Advisory: 45302 Researcher: Victor Mondragón Status: Not defined CVE: CVE-2018-25235 (🔒) GCVE (CVE): GCVE-0-2018-25235 GCVE (VulDB): GCVE-100-354180 EUVD: 🔒 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/30/2026 15:25 Updated: 03/30/2026 16:12 Changes: 03/30/2026 15:25 (81), 03/30/2026 16:12 (1) Complete: 🔍 Cache ID: 99:AB1:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸