Authenticated RCE due to unsafe JSON deserialization
Priority MEDIUM 46CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
Unsafe deserialization of untrusted JSON allows execution of arbitrary code on affected releases of the Illumio PCE. Authentication to the API is required to exploit this vulnerability. The flaw exists within the network_traffic API endpoint. An attacker can leverage this vulnerability to execute code in the context of the PCE’s operating system user.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.018 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Illumio | Core PCE | 19.3.0 – 19.3.6; 21.2.0 – 21.2.7; 21.5.0 – 21.5.35; 22.2.0 – 22.2.41; 22.5.0 – 22.5.30; 23.2.0 – 23.2.10 | — | No fix listed | CNA |
- Core PCE VendorIllumio Affected 19.3.0 – 19.3.6; 21.2.0 – 21.2.7; 21.5.0 – 21.5.35; 22.2.0 – 22.2.41; 22.5.0 – 22.5.30; 23.2.0 – 23.2.10 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:illumio:core_policy_compute_engine:*:*:*:*:*:*:*:* | before 19.3.7; 21.2.0 to before 21.2.8; 21.5.0 to before 21.5.36; 22.2.0 to before 22.2.42; 22.5.0 to before 22.5.31; 23.2.0 to before 23.2.11 | Vulnerable | Illumio |
- cpe:2.3:a:illumio:core_policy_compute_engine:*:*:*:*:*:*:*:* Versions before 19.3.7; 21.2.0 to before 21.2.8; 21.5.0 to before 21.5.36; 22.2.0 to before 22.2.42; 22.5.0 to before 22.5.31; 23.2.0 to before 23.2.11 Vulnerable ·Illumio
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-5183
- 2026-10-03 Alias added: GHSA-hx66-c4pw-m73r
References
Sources
- CVE-2023-5183 · CVE Program
- CVE-2023-5183 · NVD
- FIRST EPSS
- GHSA-hx66-c4pw-m73r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences