CVE-2026-25815
High PUBLISHEDFortinet FortiOS through 7.6.6 allows attackers to decrypt LDAP credentials stored in device configuration files, as exploited in the wild from...
Not yet in CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Fortinet FortiOS through 7.6.6 allows attackers to decrypt LDAP credentials stored in device configuration files, as exploited in the wild from 2025-12-16 through 2026 (by default, the encryption key is the same across all customers' installations). NOTE: the Supplier's position is that the instance of CWE-1394 is not a vulnerability because customers "are supposed to enable" a non-default option that eliminates the weakness. However, that non-default option can disrupt functionality as shown in the "Managing FortiGates with private data encryption" document, and is therefore intentionally not a default option.
- CVE Published
- Feb 05, 2026
- Exploitation Reported
- Jun 01, 2026
- CVSS
- 3.2 Low
- EPSS
- 0.1%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Fortinet |
FortiOS
|
0 to <= 7.6.6 |
Affected |
CVE References
- cert.at/en/blog/2026/1/threat-actors-use-forticloud-... cert.at · CVE Record https://www.cert.at/en/blog/2026/1/threat-actors-use-forticloud-to-co...
- docs.fortinet.com/document/fortimanager/7.6.6/administration-g... docs.fortinet.com · CVE Record https://docs.fortinet.com/document/fortimanager/7.6.6/administration-...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 10:50 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Exploitation Status
Exploited in the wild
Recorded 2026-06-01 10:50:28 UTC · CVE
Weaknesses (CWE)
-
Use of Default Cryptographic Key
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
10:50 UTC about 2 months ago10:50 UTC · about 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
21:14 UTC 6 months ago21:14 UTC · 6 months ago
CVE published
Vulnerability disclosed publicly
-
21:14 UTC 6 months ago21:14 UTC · 6 months ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2026-25815
{
"cve_id": "CVE-2026-25815",
"title": "Fortinet FortiOS through 7.6.6 allows attackers to decrypt LDAP credentials s...",
"affected_vendor": "Fortinet",
"affected_product": "FortiOS",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "High",
"cvss_score": 3.2,
"epss_score": 0.00106,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}