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CVE-2019-25569

22
FAUCET Score

CVE-2019-25569 describes a stack-based buffer overflow vulnerability in RealTerm Serial Terminal version 2.0.0.70, specifically within the Echo Port field. A local attacker can exploit this by providing a specially crafted input string to trigger a structured exception handler (SEH) chain corruption, leading to application crash. This vulnerability carries a CVSS score of 6.2 (Medium), indicating a local attack vector with low complexity that results in a high impact on availability (Denial of Service). There is no evidence of active exploitation, nor is public exploit code available in major repositories like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are currently absent, suggesting very low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0.70CPE matchmatch criteria
cpe:2.3:a:crun:realterm:2.0.0.70:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

6.9MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/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

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
8.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 19th percentile among its peer group of 3,049 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

realterm.sourceforge.io
Product
sourceforge.net / projects/realterm/files
Product
exploit-db.com / exploits/46391
ExploitThird Party AdvisoryVDB Entry
vulncheck.com / advisories/realterm-serial-terminal-seh-overflow-crash
Third Party Advisory