How severe is CVE-2025-11624?

CVE-2025-11624 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-2025-11624 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-11624?

CVE-2025-11624 affects Wolfssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-11624?

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-2025-11624 have an EU (EUVD) identifier?

Yes. CVE-2025-11624 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35172.

When was CVE-2025-11624 published?

CVE-2025-11624 was published on 2025-10-21 and last updated on 2026-06-17.

CVE-2025-11624

CVE-2025-11624 is a critical-severity vulnerability in Wolfssh 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 1.8
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35172
Weakness: CWE-787
Affected product: Wolfssh
Published: 2025-10-21
Last modified: 2026-06-17

Description

Potential stack buffer overwrite on the SFTP server side when receiving a malicious packet that has a handle size larger than the system handle or file descriptor size, but smaller than max handle size allowed.

Frequently asked questions

What is CVE-2025-11624?: Potential stack buffer overwrite on the SFTP server side when receiving a malicious packet that has a handle size larger than the system handle or file descriptor size, but smaller than max handle size allowed.
How severe is CVE-2025-11624?: CVE-2025-11624 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-2025-11624 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-11624?: CVE-2025-11624 affects Wolfssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-11624?: 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-2025-11624 have an EU (EUVD) identifier?: Yes. CVE-2025-11624 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35172.
When was CVE-2025-11624 published?: CVE-2025-11624 was published on 2025-10-21 and last updated on 2026-06-17.

References

https://github.com/wolfSSL/wolfssh/pull/834

Affected products (1)

cpe:2.3:a:wolfssh:wolfssh:*:*:*:*:*:*:*:*

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