Is CVE-2017-16228 in the CISA KEV catalog?

No. CVE-2017-16228 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-16228?

CVE-2017-16228 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-16228?

CVE-2017-16228 has an EPSS score of 3.39% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-16228?

Upgrade dulwich on debian 11 to 0.18.5-1 or later.

CVE & CISA-KEV Catalog

CVE-2017-16228

CRITICALEPSS 87th pctl

9.8

CVSS v3

NVD

Description

Dulwich before 0.18.5, when an SSH subprocess is used, allows remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in the hostname, a related issue to CVE-2017-9800, CVE-2017-12836, CVE-2017-12976, CVE-2017-1000116, and CVE-2017-1000117.

How to fix

Remediation Available

dulwichDebian

Fixed in:0.18.5-1CVE-2017-16228

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.39%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Patch1

dulwich.io

Vendor Advisory1

dulwich.io

Third-Party Advisory1

tracker.debian.org

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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 2026-05-13.