Security Resilience

CVE-2024-23113

Fortinet Fortiproxy 7.0.0 – 7.0.14

CISA KEVActive ExploitationEUVD Exploited
Published
15 February 2024
Modified
17 June 2026
KEV Added
09 October 2024
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.62 99.2th percentile
Risk Priority 97 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2024-23113 is a critical-severity Use of Externally-Controlled Format String (CWE-134) vulnerability in Fortinet Fortiproxy. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique LSASS Memory (T1003.001); ranked in the top 0.8% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-23113 is a remotely exploitable format-string vulnerability (CWE-134) present in multiple Fortinet products. Affected versions include FortiOS 7.4.0–7.4.2, 7.2.0–7.2.6 and 7.0.0–7.0.13; FortiProxy 7.4.0–7.4.2, 7.2.0–7.2.8 and 7.0.0–7.0.14; FortiPAM 1.2.0, 1.1.0–1.1.2 and 1.0.0–1.0.3; and FortiSwitchManager 7.2.0–7.2.3 and 7.0.0–7.0.3. The flaw permits an attacker to supply a specially crafted packet that triggers unauthorized code or command execution.

An unauthenticated network attacker can send the malicious packet directly to an exposed interface, achieving full control over the affected device with no user interaction or credentials required. The CVSS 3.1 score of 9.8 reflects the combination of network attack vector, low complexity, and complete confidentiality, integrity and availability impact.

Fortinet’s advisory FG-IR-24-029 and the corresponding CISA entry recommend applying the vendor-supplied patches or upgrading to fixed releases; organizations should also restrict management access and monitor for anomalous traffic until remediation is complete.

The vulnerability appears in CISA’s Known Exploited Vulnerabilities catalog, confirming observed in-the-wild exploitation. Its EPSS score has reached a peak of 0.58 with a current value of 0.54, indicating sustained attacker interest after disclosure.

EU & UK References

Vulnerability Data

A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, FortiPAM versions 1.2.0, 1.1.0 through 1.1.2, 1.0.0 through 1.0.3, FortiSwitchManager…

more

versions 7.2.0 through 7.2.3, 7.0.0 through 7.0.3 allows attacker to execute unauthorized code or commands via specially crafted packets.

CWE(s)
CWE-134
KEV Date Added
09 October 2024

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
T1016 System Network Configuration Discovery Discovery
Adversaries may look for details about the network configuration and settings, such as IP and/or MAC addresses, of systems they access or through information discovery of remote systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-40721Same product: Fortinet Fortios
CVE-2023-45583Same product: Fortinet Fortios
CVE-2023-36639Same product: Fortinet Fortios
CVE-2023-36640Same product: Fortinet Fortios
CVE-2023-29181Same product: Fortinet Fortios
CVE-2024-45324Same product: Fortinet Fortios
CVE-2022-40684Same product: Fortinet Fortiosboth on KEV
CVE-2023-48784Same product: Fortinet Fortios
CVE-2025-64157Same product: Fortinet Fortios
CVE-2024-26010Same product: Fortinet Fortios

Affected Assets

fortinet
fortiproxy
7.0.0 — 7.0.14 · 7.2.0 — 7.2.8 · 7.4.0 — 7.4.2
fortinet
fortiswitchmanager
7.0.0 — 7.0.3 · 7.2.0 — 7.2.3
fortinet
fortios
7.0.0 — 7.0.13 · 7.2.0 — 7.2.6 · 7.4.0 — 7.4.2
fortinet
fortipam
1.2.0 · 1.0.0 — 1.0.3 · 1.1.0 — 1.1.2

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and static analysis can discover format-string vulnerabilities before deployment.

SI-10 Information Input Validation good match

Input validation can reject or sanitize externally supplied format strings before they reach formatting functions.

SA-15 Development Process, Standards, and Tools partial match

Secure development standards and tools can mandate use of static format strings or safe formatting APIs.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

ID.RA-01 partial match
blocks

Vulnerability identification can discover existing format-string flaws but does not prevent their introduction.

PR.PS-06 partial match
blocks

Secure SDLC practices directly prevent external format strings via code review, static analysis, and safe APIs.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References