Is CVE-2017-17432 in the CISA KEV catalog?

No. CVE-2017-17432 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-17432?

CVE-2017-17432 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-17432?

CVE-2017-17432 has an EPSS score of 3.05% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-17432?

Upgrade openafs on debian 11 to 1.6.22-1 or later.

CVE & CISA-KEV Catalog

CVE-2017-17432

HIGHEPSS 86th pctl

7.5

CVSS v3

NVD

Description

OpenAFS 1.x before 1.6.22 does not properly validate Rx ack packets, which allows remote attackers to cause a denial of service (system crash or application crash) via crafted fields, as demonstrated by an integer underflow and assertion failure for a small MTU value.

CWE-617

How to fix

Remediation Available

openafsDebian

Fixed in:1.6.22-1CVE-2017-17432

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.05%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Vendor Advisory1

openafs.org

Third-Party Advisory2

Other references1

lists.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.