A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request
Published Jul 14, 2026
4.3
MEDIUMCVSS 3.1
EPSS 0.38%
Description
A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.
Affected products
-
- Version 7.0.0StatusaffectedConstraints<=7.0.19
- Version 7.2.0StatusaffectedConstraints<=7.2.13
- Version 7.4.0StatusaffectedConstraints<=7.4.3
- Version
- ≥ 7.2.0 · ≤ 7.2.15
- ≥ 7.4.0 · ≤ 7.4.13
- ≥ 7.6.0 · ≤ 7.6.5
- ≥ 7.2.0 · ≤ 7.2.13
- ≥ 7.4.0 · ≤ 7.4.8
- ≥ 7.6.0 · ≤ 7.6.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Fortinet remediated this issue in FortiSASE version 25.4.b and hence customers do not need to perform any action. Upgrade to FortiProxy version 7.6.6 or above Upgrade to FortiProxy version 7.4.14 or above
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
1 other source (NVD) ▾
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jul 14, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Jul–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.38% (0.00381) | 29.69th | v5 (v2026.06.15) |
| Jul 15, 2026 | 0.32% (0.00316) | 23.58th | v5 (v2026.06.15) |
References (2)
- https://cert-portal.siemens.com/productcert/html/ssa-864900.html
- https://fortiguard.fortinet.com/psirt/#5944 Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://cert-portal.siemens.com/productcert/html/ssa-864900.html | ||
| https://fortiguard.fortinet.com/psirt/#5944 | Vendor Advisory |
Change history (0)
No recorded changes yet.