How severe is CVE-2026-106584?

CVE-2026-106584 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-106584 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-106584?

CVE-2026-106584 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-106584?

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

When was CVE-2026-106584 published?

CVE-2026-106584 was published on 2026-10-06 and last updated on 2026-10-13.

CVE-2026-106584

CVE-2026-106584 is a low-severity vulnerability in Openbsd Openssh with a CVSS 3.x base score of 2.5. 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-193.

Key facts

Severity: Low (CVSS 3.x base score 2.5)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-193
Affected product: Openbsd Openssh
Published: 2026-10-06
Last modified: 2026-10-13

Description

In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect expiration times because of Daylight Saving mishandling. There can be a slightly more severe effect on users in certain Antarctic locations.

Frequently asked questions

What is CVE-2026-106584?: In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect expiration times because of Daylight Saving mishandling. There can be a slightly more severe effect on users in certain Antarctic locations.
How severe is CVE-2026-106584?: CVE-2026-106584 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-106584 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-106584?: CVE-2026-106584 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-106584?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-106584 published?: CVE-2026-106584 was published on 2026-10-06 and last updated on 2026-10-13.

References

https://www.openssh.org/releasenotes.html#10.6

Affected products (1)

cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*

More vulnerabilities in Openbsd Openssh

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CVE-2000-0999 — Critical (CVSS 10.0): Format string vulnerabilities in OpenBSD ssh program (and possibly other BSD-based operating systems) allow attackers…
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All CVEs affecting Openbsd Openssh →

Other CWE-193 (Off-by-one Error) vulnerabilities

CVE-2024-10442 — Critical (CVSS 10.0): Off-by-one error vulnerability in the transmission component in Synology Replication Service before 1.0.12-0066,…
CVE-2026-64047 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net: tls: fix off-by-one in sg_chain entry count…
CVE-2026-53309 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions()…
CVE-2026-53088 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix off-by-one in…
CVE-2024-38441 — Critical (CVSS 9.8): Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to…
CVE-2023-46853 — Critical (CVSS 9.8): In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n is used…

Browse all CWE-193 (Off-by-one Error) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

111.229.155.203 (ipv4-addr)
162.245.218.45 (ipv4-addr)
117.24.243.99 (ipv4-addr)
162.214.74.29 (ipv4-addr)
195.154.199.162 (ipv4-addr)
120.79.247.255 (ipv4-addr)
162.19.251.6 (ipv4-addr)
142.86.120.115 (ipv4-addr)