How severe is CVE-2019-25681?

CVE-2019-25681 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-25681 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-25681?

CVE-2019-25681 affects Xlightftpd Xlight Ftp Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-25681?

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-2019-25681 have an EU (EUVD) identifier?

Yes. CVE-2019-25681 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-20097.

When was CVE-2019-25681 published?

CVE-2019-25681 was published on 2026-04-05 and last updated on 2026-06-17.

CVE-2019-25681

CVE-2019-25681 is a high-severity vulnerability in Xlightftpd Xlight Ftp Server with a CVSS 3.x base score of 8.4. 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 8.4)
CVSS v4: 8.6
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2019-20097
Weakness: CWE-787
Affected product: Xlightftpd Xlight Ftp Server
Published: 2026-04-05
Last modified: 2026-06-17

Description

Xlight FTP Server 3.9.1 contains a structured exception handler (SEH) overwrite vulnerability that allows local attackers to crash the application and overwrite SEH pointers by supplying a crafted buffer string. Attackers can inject a 428-byte payload through the program execution field in virtual server configuration to trigger a buffer overflow that corrupts the SEH chain and enables potential code execution.

Frequently asked questions

What is CVE-2019-25681?: Xlight FTP Server 3.9.1 contains a structured exception handler (SEH) overwrite vulnerability that allows local attackers to crash the application and overwrite SEH pointers by supplying a crafted buffer string. Attackers can inject a 428-byte payload through the program execution field in virtual server configuration to trigger a buffer overflow that corrupts the SEH chain and enables potential code execution.
How severe is CVE-2019-25681?: CVE-2019-25681 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-25681 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-25681?: CVE-2019-25681 affects Xlightftpd Xlight Ftp Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-25681?: 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-2019-25681 have an EU (EUVD) identifier?: Yes. CVE-2019-25681 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-20097.
When was CVE-2019-25681 published?: CVE-2019-25681 was published on 2026-04-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:xlightftpd:xlight_ftp_server:3.9.1:*:*:*:*:*:*:*

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