How severe is CVE-2018-1355?

CVE-2018-1355 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-1355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1355?

CVE-2018-1355 primarily affects Fortinet Fortianalyzer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-1355?

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

When was CVE-2018-1355 published?

CVE-2018-1355 was published on 2018-06-27 and last updated on 2026-06-17.

CVE-2018-1355

CVE-2018-1355 is a medium-severity vulnerability in Fortinet Fortianalyzer with a CVSS 3.x base score of 6.1. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 5.8
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Fortinet Fortianalyzer
Published: 2018-06-27
Last modified: 2026-06-17

Description

An open redirect vulnerability in Fortinet FortiManager 6.0.0, 5.6.5 and below versions, FortiAnalyzer 6.0.0, 5.6.5 and below versions allows attacker to inject script code during converting a HTML table to a PDF document under the FortiView feature. An attacker may be able to social engineer an authenticated user into generating a PDF file containing injected malicious URLs.

Frequently asked questions

What is CVE-2018-1355?: An open redirect vulnerability in Fortinet FortiManager 6.0.0, 5.6.5 and below versions, FortiAnalyzer 6.0.0, 5.6.5 and below versions allows attacker to inject script code during converting a HTML table to a PDF document under the FortiView feature. An attacker may be able to social engineer an authenticated user into generating a PDF file containing injected malicious URLs.
How severe is CVE-2018-1355?: CVE-2018-1355 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-1355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1355?: CVE-2018-1355 primarily affects Fortinet Fortianalyzer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-1355?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1355 published?: CVE-2018-1355 was published on 2018-06-27 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortianalyzer:6.0.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimanager:6.0.0:*:*:*:*:*:*:*

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