How severe is CVE-2014-2653?

CVE-2014-2653 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2014-2653 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2653?

CVE-2014-2653 primarily affects Openbsd Openssh. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2653?

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

When was CVE-2014-2653 published?

CVE-2014-2653 was published on 2014-03-27 and last updated on 2026-06-17.

CVE-2014-2653

CVE-2014-2653 is a medium-severity vulnerability in Openbsd Openssh with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 5.8
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Openbsd Openssh
Published: 2014-03-27
Last modified: 2026-06-17

Description

The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.

Frequently asked questions

What is CVE-2014-2653?: The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.
How severe is CVE-2014-2653?: CVE-2014-2653 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2014-2653 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2653?: CVE-2014-2653 primarily affects Openbsd Openssh. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2653?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-2653 published?: CVE-2014-2653 was published on 2014-03-27 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:6.0:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:6.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:6.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:6.3:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:6.4:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:6.5:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

122.114.69.235 (ipv4-addr)
92.47.46.174 (ipv4-addr)
76.12.128.249 (ipv4-addr)
62.182.118.138 (ipv4-addr)
61.76.136.25 (ipv4-addr)
213.135.175.76 (ipv4-addr)
187.237.47.214 (ipv4-addr)
187.192.86.153 (ipv4-addr)