How severe is CVE-2026-0930?

CVE-2026-0930 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-0930 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-0930?

CVE-2026-0930 affects Wolfssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0930?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-0930 have an EU (EUVD) identifier?

Yes. CVE-2026-0930 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23950.

When was CVE-2026-0930 published?

CVE-2026-0930 was published on 2026-04-20 and last updated on 2026-06-17.

CVE-2026-0930

CVE-2026-0930 is a medium-severity vulnerability in Wolfssh with a CVSS 3.x base score of 4.3. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 2.3
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-23950
Weakness: CWE-125
Affected product: Wolfssh
Published: 2026-04-20
Last modified: 2026-06-17

Description

Potential read out of bounds case with wolfSSHd on Windows while handling a terminal resize request. An authenticated user could trigger the out of bounds read after establishing a connection which would leak the adjacent stack memory to the pseudo-console output.

Frequently asked questions

What is CVE-2026-0930?: Potential read out of bounds case with wolfSSHd on Windows while handling a terminal resize request. An authenticated user could trigger the out of bounds read after establishing a connection which would leak the adjacent stack memory to the pseudo-console output.
How severe is CVE-2026-0930?: CVE-2026-0930 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-0930 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-0930?: CVE-2026-0930 affects Wolfssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0930?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-0930 have an EU (EUVD) identifier?: Yes. CVE-2026-0930 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23950.
When was CVE-2026-0930 published?: CVE-2026-0930 was published on 2026-04-20 and last updated on 2026-06-17.

References

https://github.com/wolfssl/wolfssh/pull/846

Affected products (1)

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

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