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CVE-2023-34990

60
FAUCET Score

CVE-2023-34990 is a critical relative path traversal vulnerability affecting Fortinet FortiWLM versions 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4. This flaw allows an unauthenticated attacker to execute unauthorized code or commands via specially crafted web requests. With a CVSS score of 9.8 (Critical), it poses a severe risk, enabling complete compromise of confidentiality, integrity, and availability. While not yet in CISA's KEV catalog, public exploit code (Nuclei templates) is available, and its high EPSS score (0.66334) combined with active community discussion and media coverage indicates a significant and immediate threat.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.5.0, < 8.5.5CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*
>= 8.6.0, < 8.6.6CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*
>= 8.5.0, <= 8.5.4CPE match
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*
>= 8.6.0, <= 8.6.5CPE match
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
24.90%
Probability of exploitation in next 30 days
EPSS Percentile
97.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2023-34990 · Jun 4, 2025
This CVE's current EPSS score of 0.2490 is in the 95th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

fortinetvendor investigatingvia nvd_reference
View patch

References

fortiguard.com / psirt/FG-IR-23-144
Vendor Advisory