Is CVE-2016-6210 in the CISA KEV catalog?

No. CVE-2016-6210 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-6210?

CVE-2016-6210 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2016-6210?

CVE-2016-6210 has an EPSS score of 88.94% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-6210?

Upgrade openssh on debian 11 to 1:7.2p2-6 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2016-6210

MEDIUMEPSS 100th pctl

5.9

CVSS v3

NVD

Description

sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.

CWE-200Information Exposure

How to fix

Remediation Available

opensshDebian

Fixed in:1:7.2p2-6CVE-2016-6210

opensshUbuntu

Fixed in:1:6.6p1-2ubuntu2.8USN-3061-1

Fixed in:1:7.2p2-4ubuntu2.1USN-3061-1

openssh-serverUbuntu

Fixed in:1:6.6p1-2ubuntu2.8USN-3061-1

Fixed in:1:7.2p2-4ubuntu2.1USN-3061-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

88.94%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Vendor Advisory1

openssh.com

Third-Party Advisory2

Other references9

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-29.