Is CVE-2022-39948 in the CISA KEV catalog?

No. CVE-2022-39948 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-39948?

CVE-2022-39948 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2022-39948?

CVE-2022-39948 has an EPSS score of 0.28% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-39948?

Upgrade fortios to 7.2.4 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-39948

MEDIUM

4.8

CVSS v3

NVD

Description

An improper certificate validation vulnerability [CWE-295] in FortiOS 7.2.0 through 7.2.3, 7.0.0 through 7.0.7, 6.4 all versions, 6.2 all versions, 6.0 all versions and FortiProxy 7.0.0 through 7.0.6, 2.0 all versions, 1.2 all versions may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the FortiOS/FortiProxy device and remote servers hosting threat feeds (when the latter are configured as Fabric connectors in FortiOS/FortiProxy)

CWE-295Improper Certificate Validation

How to fix

Remediation Available

fortiosNVD

Affected:>= 7.2.0, < 7.2.4Fixed in:7.2.4CVE-2022-39948derived from NVD

fortiproxyNVD

Affected:>= 7.0.0, < 7.0.7Fixed in:7.0.7CVE-2022-39948derived from NVD

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

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.28%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Vendor Advisory1

fortiguard.com

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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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 2024-11-21.