Is CVE-2017-9022 in the CISA KEV catalog?

No. CVE-2017-9022 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-9022?

CVE-2017-9022 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-9022?

CVE-2017-9022 has an EPSS score of 1.73% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-9022?

Upgrade strongswan on debian 11 to 5.5.1-4 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2017-9022

HIGHEPSS 75th pctl

7.5

CVSS v3

NVD

Description

The gmp plugin in strongSwan before 5.5.3 does not properly validate RSA public keys before calling mpz_powm_sec, which allows remote peers to cause a denial of service (floating point exception and process crash) via a crafted certificate.

CWE-20Improper Input Validation

How to fix

Remediation Available

strongswanDebian

Fixed in:5.5.1-4CVE-2017-9022

libstrongswanUbuntu

Fixed in:5.1.2-0ubuntu2.6USN-3301-1

Fixed in:5.3.5-1ubuntu3.3USN-3301-1

strongswanUbuntu

Fixed in:5.1.2-0ubuntu2.6USN-3301-1

Fixed in:5.3.5-1ubuntu3.3USN-3301-1

strongswan-plugin-gmpUbuntu

Fixed in:5.1.2-0ubuntu2.6USN-3301-1

Fixed in:5.3.5-1ubuntu3.3USN-3301-1

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

Exploit Intelligence

1.73%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Third-Party Advisory3

Other references1

strongswan.org

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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 2026-05-13.