How severe is CVE-2022-30306?

CVE-2022-30306 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-30306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30306?

CVE-2022-30306 primarily affects Fortinet Fortiweb. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-30306?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-30306 published?

CVE-2022-30306 was published on 2023-02-16 and last updated on 2026-06-17.

CVE-2022-30306

CVE-2022-30306 is a medium-severity vulnerability in Fortinet Fortiweb with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Fortinet Fortiweb
Published: 2023-02-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-30306?: 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.
How severe is CVE-2022-30306?: CVE-2022-30306 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-30306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30306?: CVE-2022-30306 primarily affects Fortinet Fortiweb. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-30306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-30306 published?: CVE-2022-30306 was published on 2023-02-16 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-22-167

Affected products (6)

cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiweb:6.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiweb:6.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiweb:6.4.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiweb:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiweb:7.0.1:*:*:*:*:*:*:*

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