Security readout for executives and security teams
Plain-English summary
CVE-2024-23113 is a critical Fortinet flaw that can let an unauthenticated network attacker run unauthorized code or commands by sending crafted packets. It affects multiple Fortinet security and management products across listed FortiOS, FortiProxy, FortiPAM, and FortiSwitchManager versions.
Executive priority
Treat this as urgent. It is critical severity, remotely reachable, requires no authentication, and appears in CISA KEV for known exploitation. Externally reachable affected Fortinet systems should be prioritized ahead of routine patch cycles.
Technical view
The vulnerability is CWE-134, externally controlled format string use, with CVSS 9.8. The CVE states network attack, low complexity, no privileges, and no user interaction, with high confidentiality, integrity, and availability impact. Affected ranges are specified in the CVE bundle.
Likely exposure
Exposure is most likely where affected Fortinet appliances or management products are reachable over the network, especially externally reachable FortiOS or FortiProxy deployments. The provided sources do not identify specific ports, services, deployment modes, or compensating controls.
Exploitation context
CISA KEV inclusion indicates known exploitation. The CVE also marks exploit maturity high. The source bundle does not provide exploit details, observed targeting scope, indicators, or proof-of-concept status, so those should not be assumed.
Researcher notes
The public bundle supports critical unauthenticated network code or command execution via crafted packets. Evidence is incomplete on exact vulnerable components, ports, exploit technique, and fixed versions. Use Fortinet’s PSIRT advisory as the authoritative remediation source.
Mitigation direction
- Review Fortinet PSIRT FG-IR-24-029 for affected branches and vendor-directed fixes.
- Upgrade affected FortiOS, FortiProxy, FortiPAM, and FortiSwitchManager systems per Fortinet guidance.
- Prioritize externally reachable Fortinet systems for emergency maintenance.
- Track CISA KEV deadlines and internal remediation exceptions.
- Do not rely on unsupported workarounds not documented by Fortinet.
Validation and detection
- Inventory Fortinet products and compare versions against the listed affected ranges.
- Identify which affected systems are reachable from untrusted networks.
- Confirm remediation status against Fortinet PSIRT FG-IR-24-029.
- Review logs and monitoring for unusual activity, without assuming indicators absent from sources.
- Document remaining exceptions with owner, exposure, and target remediation date.
Public sources used
Michael Williams reviewed this cited source version on .
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-134: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-23113 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://fortiguard.com/psirt/FG-IR-24-029CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-23113CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Externally-Controlled Format String
Use of Externally-Controlled Format String represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.