CVE-2019-25569 | Realterm Serial Terminal 2.0.0.70 out-of-bounds write (Exploit 46391 / EDB-46391)

VDB-352354 · CVE-2019-25569 · EXPLOIT 46391 REALTERM SERIAL TERMINAL 2.0.0.70 OUT-OF-BOUNDS WRITE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.6 $0-$5k 1.91+ Summaryinfo A vulnerability, which was classified as critical, was found in Realterm Serial Terminal 2.0.0.70. This affects an unknown part. Executing a manipulation can lead to out-of-bounds write. The identification of this vulnerability is CVE-2019-25569. The attack can only be executed locally. Furthermore, there is an exploit available. Detailsinfo A vulnerability has been found in Realterm Serial Terminal 2.0.0.70 and classified as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. CVE summarizes: RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attackers can craft a malicious input string with 268 bytes of padding followed by SEH overwrite values and paste it into the Port field to cause denial of service. The weakness was shared by Alejandra Sánchez as 46391. The advisory is available at exploit-db.com. This vulnerability was named CVE-2019-25569 since 03/21/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are unknown but a public exploit is available. It is possible to download the exploit 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 (46391) and EUVD (EUVD-2019-19886). Productinfo Vendor Realterm Name Serial Terminal Version 2.0.0.70 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 03/21/2026 Advisory disclosed 03/21/2026 +0 days CVE reserved 03/21/2026 +0 days VulDB entry created 03/21/2026 +0 days VulDB entry last update Sourcesinfo Advisory: 46391 Researcher: Alejandra Sánchez Status: Not defined CVE: CVE-2019-25569 (🔒) GCVE (CVE): GCVE-0-2019-25569 GCVE (VulDB): GCVE-100-352354 EUVD: 🔒 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/21/2026 15:55 Updated: 03/21/2026 17:13 Changes: 03/21/2026 15:55 (79), 03/21/2026 17:13 (1) Complete: 🔍 Cache ID: 99:5F9:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸