How severe is CVE-2024-23113?

CVE-2024-23113 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which products are affected by CVE-2024-23113?

Affected package information for CVE-2024-23113 is not yet fully mapped. Check the official advisory links for details.

How do I patch CVE-2024-23113?

No patch has shipped for CVE-2024-23113 yet — track the fortinet fortios advisory for a fixed release and apply the workarounds below in the meantime.

How do I detect CVE-2024-23113 across my infrastructure?

Inventory every fortinet fortios deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

How do I mitigate CVE-2024-23113 if there is no patch (or I can't update yet)?

Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

How does O3 Security protect against CVE-2024-23113?

O3 detects and blocks CVE-2024-23113 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Is CVE-2024-23113 actively exploited in the wild?

Yes. There are 10 known exploit references for CVE-2024-23113, including 9 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2024-23113?

CVE-2024-23113 has an EPSS (Exploit Prediction Scoring System) score of 61.7%, placing it in the 99th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2024-23113 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2024-23113 (Fortinet Multiple Products Format String Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2024-10-09. CISA required all US federal civilian agencies to remediate this vulnerability by 2024-10-30. The required action was: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2024-23113?

CVE-2024-23113 is classified as CWE-134 (CWE-134). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2024-23113?

CVE-2024-23113 affects fortinet fortios; fortinet fortipam (1 version, e.g. 1.2.0); fortinet fortiproxy; fortinet fortiswitchmanager. Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2024-23113 published, and has it been updated?

CVE-2024-23113 was published on February 15, 2024 and was last updated on June 17, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2024-10-09 — agencies required to remediate by 2024-10-30

CVE-2024-23113

CRITICAL

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…

Published

Feb 15, 2024

Updated

Jun 17, 2026

Affected

0 pkgs

Patched

None yet

Exploits

10 known

EPSS Exploitation Probability

via FIRST.org ↗

61.7%probability of exploitation in next 30 days

High Risk99th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

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 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.

Affected Products

4 products · 11 configurations

fortiosfortinet

≥ 7.4.0 && ≤ 7.4.2

range

fortipamfortinet

≥ 1.1.0 && ≤ 1.1.2

1 version

1.2.0

Application

fortiproxyfortinet

≥ 7.4.0 && ≤ 7.4.2

range

Application

fortiswitchmanagerfortinet

≥ 7.2.0 && ≤ 7.2.3

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.