How severe is CVE-2019-25654?

CVE-2019-25654 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-25654 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-25654?

CVE-2019-25654 affects Coreftp Core Ftp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-25654?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2019-25654 have an EU (EUVD) identifier?

Yes. CVE-2019-25654 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-20046.

When was CVE-2019-25654 published?

CVE-2019-25654 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2019-25654

CVE-2019-25654 is a high-severity vulnerability in Coreftp Core Ftp with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2019-20046
Weakness: CWE-787
Affected product: Coreftp Core Ftp
Published: 2026-03-30
Last modified: 2026-06-17

Description

Core FTP/SFTP Server 1.2 contains a buffer overflow vulnerability that allows attackers to crash the service by supplying an excessively long string in the User domain field. Attackers can paste a malicious payload containing 7000 bytes of data into the domain configuration to trigger an application crash and deny service.

Frequently asked questions

What is CVE-2019-25654?: Core FTP/SFTP Server 1.2 contains a buffer overflow vulnerability that allows attackers to crash the service by supplying an excessively long string in the User domain field. Attackers can paste a malicious payload containing 7000 bytes of data into the domain configuration to trigger an application crash and deny service.
How severe is CVE-2019-25654?: CVE-2019-25654 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-25654 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-25654?: CVE-2019-25654 affects Coreftp Core Ftp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-25654?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2019-25654 have an EU (EUVD) identifier?: Yes. CVE-2019-25654 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-20046.
When was CVE-2019-25654 published?: CVE-2019-25654 was published on 2026-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:coreftp:core_ftp:1.2:*:*:*:*:*:*:*

More vulnerabilities in Coreftp Core Ftp

CVE-2020-19596 — Critical (CVSS 9.8): Buffer overflow vulnerability in Core FTP Server v1.2 Build 583, via a crafted username.
CVE-2018-12113 — Critical (CVSS 9.8): Core FTP LE version 2.2 Build 1921 is prone to a buffer overflow vulnerability that may result in a DoS or remote code…
CVE-2013-3930 — Critical (CVSS 9.3): Stack-based buffer overflow in Core FTP before 2.2 build 1785 allows remote FTP servers to execute arbitrary code via a…
CVE-2009-3484 — Critical (CVSS 9.3): Stack-based buffer overflow in Core FTP 2.1 build 1612 allows user-assisted remote attackers to execute arbitrary code…
CVE-2014-1215 — High (CVSS 7.8): Multiple buffer overflows in Core FTP Server before 1.2 build 508 allow local users to gain privileges via vectors…
CVE-2019-25686 — High (CVSS 7.5): Core FTP 2.0 build 653 contains a denial of service vulnerability in the PBSZ command that allows unauthenticated…

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