Is CVE-2022-30306 in the CISA KEV catalog?

No. CVE-2022-30306 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-30306?

CVE-2022-30306 has a CVSS v3 base score of 6.6 (MEDIUM).

What is the EPSS score for CVE-2022-30306?

CVE-2022-30306 has an EPSS score of 0.97% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-30306?

Upgrade fortiweb to 6.3.20 or later.

CVE & CISA-KEV Catalog

CVE-2022-30306

MEDIUM

6.6

CVSS v3

NVD

Description

A stack-based buffer overflow vulnerability [CWE-121] in the CA sign functionality of FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.19 and below may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted password.

CWE-121Stack-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

fortiwebNVD

Affected:>= 6.3.6, < 6.3.20Fixed in:6.3.20CVE-2022-30306derived 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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.97%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Patch1

fortiguard.com

Related Vulnerabilities

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2009-0927	High	8.8	97%	KEV	Fix
CVE-2020-10924	High	8.8	87%	-	-
CVE-2022-20705	Critical	10.0	80%	-	-

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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.