What is CVE-2023-29177?

CVE-2023-29177 is a medium-severity vulnerability in Fortinet Fortiadc, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2023-11-14.

How severe is CVE-2023-29177?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Buffer overflow in Fortinet Fortiadc

CVE-2023-29177

Multiple buffer copy without checking size of input ('classic buffer overflow') vulnerabilities [CWE-120] in FortiADC version 7.2.0 and before 7.1.2 & FortiDDoS-F version 6.5.0 and before 6.4.1 allows a privileged attacker to execute arbitrary code or commands via specifically crafted CLI requests.

Vulnerability class: Buffer Overflow

Published 2023-11-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (14.7th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Fortinet Fortiadc — versions 7.2.0, 7.1.0, 7.0.0
Fortinet Fortiddos-F — versions 6.5.0, 6.4.0, 6.3.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

fortiguard.com/psirt/FG-IR-23-064 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-29177?: CVE-2023-29177 is a medium-severity vulnerability in Fortinet Fortiadc, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2023-11-14.
How severe is CVE-2023-29177?: Medium severity. CVSS v3 base score is 6.7 out of 10.