CVE-2023-23781

highpriority · track · 35EPSS 0.007 · 53 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.70% (53rd) EPSS

CVSS 8.8 · high

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.19 and below SAML server configuration may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted XML files.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.1–8.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.1mediumCVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:Csecondary · ENISA EU

v3.16.4mediumCVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@fortinet.comexploitability 0.5 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121USCWE-787US

affected products (9)

Products and version ranges known to be affected.

Fortinet FortiWeb≤ 6.3.6 ≤6.3.19enisa_euvdEU
Fortinet FortiWeb≤ 6.4.0 ≤6.4.2enisa_euvdEU
Fortinet FortiWeb≤ 7.0.0 ≤7.0.1enisa_euvdEU
Fortinet Inc. FortiWeb6.3.0 → 6.3.20fstec_bduRU
Fortinet Inc. FortiWeb6.4.0 → 6.4.2fstec_bduRU
Fortinet Inc. FortiWeb7.0.0 → 7.0.2fstec_bduRU
fortinet fortiweb6.3.0 → 6.3.20nvdUScpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*
fortinet fortiweb6.4.0 → 6.4.2nvdUScpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*
fortinet fortiweb7.0.0 → 7.0.2nvdUScpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2023-02-16modified 2026-06-17

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+16120 more

references (6)

External citations — patches, advisories, analysis.

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