CVE-2023-33302

A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiMail webmail and administrative interface version 6.4.0 through 6.4.4 and before 6.2.6 and FortiNDR administrative interface version 7.2.0 and before 7.1.0 allows an authenticated attacker with regular webmail access to trigger a buffer overflow and to possibly execute unauthorized code or commands via specifically crafted HTTP requests.

Published: 2025-03-31 Last update: 2025-07-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-33302 is rated Low Risk (36/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.26%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-33302

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-09 0.36% 0.26% -0.10%
2 2026-01-25 0.06% 0.36% +0.31%
3 2025-04-01 — 0.06% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-33302

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.2 3.4 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2023-33302

Affected software / configurations for CVE-2023-33302

Vendor Product Version Raw CPE
fortinet fortimail >= 5.4.0, <= 5.4.12 cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
fortinet fortimail >= 6.0.0, < 6.0.11 cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
fortinet fortimail >= 6.2.0, < 6.2.7 cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
fortinet fortimail >= 6.4.0, < 6.4.5 cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
fortinet fortindr >= 1.1.0, < 7.2.1 cpe:2.3:a:fortinet:fortindr:*:*:*:*:*:*:*:*

References for CVE-2023-33302

cvelogic Threat Intelligence