How severe is CVE-2026-73281?

CVE-2026-73281 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-73281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-73281?

CVE-2026-73281 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-73281?

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

When was CVE-2026-73281 published?

CVE-2026-73281 was published on 2026-08-11 and last updated on 2026-09-04.

CVE-2026-73281

CVE-2026-73281 is a low-severity vulnerability in Openbsd Openssh with a CVSS 3.x base score of 3.5. 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-669.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-669
Affected product: Openbsd Openssh
Published: 2026-08-11
Last modified: 2026-09-04

Description

In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the [email protected] extension.

Frequently asked questions

What is CVE-2026-73281?: In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the [email protected] extension.
How severe is CVE-2026-73281?: CVE-2026-73281 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-73281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-73281?: CVE-2026-73281 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-73281?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-73281 published?: CVE-2026-73281 was published on 2026-08-11 and last updated on 2026-09-04.

References

https://www.openssh.org/releasenotes.html#10.5

Affected products (1)

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

More vulnerabilities in Openbsd Openssh

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CVE-2002-0640 — Critical (CVSS 10.0): Buffer overflow in sshd in OpenSSH 2.3.1 through 3.3 may allow remote attackers to execute arbitrary code via a large…
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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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Other CWE-669 vulnerabilities

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CVE-2022-4446 — Critical (CVSS 9.8): PHP Remote File Inclusion in GitHub repository tsolucio/corebos prior to 8.0.
CVE-2020-24683 — Critical (CVSS 9.8): The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which…
CVE-2020-5800 — Critical (CVSS 9.8): The Eat Spray Love mobile app for both iOS and Android contains logic that allows users to bypass authentication and…
CVE-2020-15892 — Critical (CVSS 9.8): An issue was discovered in apply.cgi on D-Link DAP-1520 devices before 1.10b04Beta02. Whenever a user performs a login…

Browse all CWE-669 vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

141.11.122.40 (ipv4-addr)
47.94.92.194 (ipv4-addr)
121.199.163.141 (ipv4-addr)
120.55.92.241 (ipv4-addr)
34.140.23.40 (ipv4-addr)
164.92.182.157 (ipv4-addr)
14.206.0.20 (ipv4-addr)
91.204.209.37 (ipv4-addr)