How severe is CVE-2019-25361?

CVE-2019-25361 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-25361 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2019-25361?

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

Does CVE-2019-25361 have an EU (EUVD) identifier?

Yes. CVE-2019-25361 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19703.

When was CVE-2019-25361 published?

CVE-2019-25361 was published on 2026-02-18 and last updated on 2026-06-17.

CVE-2019-25361

CVE-2019-25361 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-121.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 8.6
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2019-19703
Weakness: CWE-121
Published: 2026-02-18
Last modified: 2026-06-17

Description

Ayukov NFTP client 1.71 contains a buffer overflow vulnerability in the SYST command handling that allows remote attackers to execute arbitrary code. Attackers can send a specially crafted SYST command with oversized payload to trigger a buffer overflow and execute a bind shell on port 5150.

Frequently asked questions

What is CVE-2019-25361?: Ayukov NFTP client 1.71 contains a buffer overflow vulnerability in the SYST command handling that allows remote attackers to execute arbitrary code. Attackers can send a specially crafted SYST command with oversized payload to trigger a buffer overflow and execute a bind shell on port 5150.
How severe is CVE-2019-25361?: CVE-2019-25361 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-25361 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2019-25361?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2019-25361 have an EU (EUVD) identifier?: Yes. CVE-2019-25361 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19703.
When was CVE-2019-25361 published?: CVE-2019-25361 was published on 2026-02-18 and last updated on 2026-06-17.

References

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