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Vulnerability Details :

CVE-2019-25570

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-21 Mar, 2026 | 12:47
Updated At-24 Mar, 2026 | 15:15
Rejected At-
Credits

RealTerm Serial Terminal 2.0.0.70 Denial of Service via Port Field

RealTerm Serial Terminal 2.0.0.70 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Port field. Attackers can paste a buffer of 1000 characters into the Port input field and click the open button to trigger a crash.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:21 Mar, 2026 | 12:47
Updated At:24 Mar, 2026 | 15:15
Rejected At:
▼CVE Numbering Authority (CNA)
RealTerm Serial Terminal 2.0.0.70 Denial of Service via Port Field

RealTerm Serial Terminal 2.0.0.70 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Port field. Attackers can paste a buffer of 1000 characters into the Port input field and click the open button to trigger a crash.

Affected Products
Vendor
Realterm
Product
RealTerm: Serial Terminal
Versions
Affected
  • 2.0.0.70
Problem Types
TypeCWE IDDescription
CWECWE-1260Improper Handling of Overlap Between Protected Memory Ranges
Type: CWE
CWE ID: CWE-1260
Description: Improper Handling of Overlap Between Protected Memory Ranges
Metrics
VersionBase scoreBase severityVector
4.06.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Alejandra Sánchez
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.exploit-db.com/exploits/46390
exploit
https://realterm.sourceforge.io/
product
https://sourceforge.net/projects/realterm/files/
product
https://www.vulncheck.com/advisories/realterm-serial-terminal-denial-of-service-via-port-field
third-party-advisory
Hyperlink: https://www.exploit-db.com/exploits/46390
Resource:
exploit
Hyperlink: https://realterm.sourceforge.io/
Resource:
product
Hyperlink: https://sourceforge.net/projects/realterm/files/
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/realterm-serial-terminal-denial-of-service-via-port-field
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:disclosure@vulncheck.com
Published At:21 Mar, 2026 | 13:16
Updated At:24 Mar, 2026 | 20:42

RealTerm Serial Terminal 2.0.0.70 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Port field. Attackers can paste a buffer of 1000 characters into the Port input field and click the open button to trigger a crash.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.06.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Secondary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Type: Secondary
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Type: Primary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CPE Matches
crun
crun
>>realterm>>2.0.0.70
cpe:2.3:a:crun:realterm:2.0.0.70:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-1260Primarydisclosure@vulncheck.com
CWE ID: CWE-1260
Type: Primary
Source: disclosure@vulncheck.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://realterm.sourceforge.io/disclosure@vulncheck.com
Product
https://sourceforge.net/projects/realterm/files/disclosure@vulncheck.com
Product
https://www.exploit-db.com/exploits/46390disclosure@vulncheck.com
Exploit
Third Party Advisory
VDB Entry
https://www.vulncheck.com/advisories/realterm-serial-terminal-denial-of-service-via-port-fielddisclosure@vulncheck.com
Third Party Advisory
Hyperlink: https://realterm.sourceforge.io/
Source: disclosure@vulncheck.com
Resource:
Product
Hyperlink: https://sourceforge.net/projects/realterm/files/
Source: disclosure@vulncheck.com
Resource:
Product
Hyperlink: https://www.exploit-db.com/exploits/46390
Source: disclosure@vulncheck.com
Resource:
Exploit
Third Party Advisory
VDB Entry
Hyperlink: https://www.vulncheck.com/advisories/realterm-serial-terminal-denial-of-service-via-port-field
Source: disclosure@vulncheck.com
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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CWE ID-CWE-1260
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