CRITICAL 9.8 Microsoft PoC
CVE-2023-3824
Buffer overflow and overread in phar_dir_read()
Microsoft Security Update 2023-Aug: Buffer overflow and overread in phar_dir_read()
Affected Products
- azl3 php 8.3.19-1 on Azure Linux 3.0
- cbl2 php 8.1.22-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-3824
- https://nvd.nist.gov/vuln/detail/CVE-2023-3824
This critical severity vulnerability with a CVSS score of 9.8 was published on 2023-08-08 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 21.8% (top 2% of all CVEs by exploitation probability). Affected: azl3 php 8.3.19-1 on Azure Linux 3.0, cbl2 php 8.1.22-1 on CBL Mariner 2.0.
Risk Timeline
CVE Disclosed2023-08-08 · 1179 days ago
Public PoC Exploit AvailableWeaponised proof-of-concept code is publicly accessible
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2023-3824NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2023-3824Related Vulnerabilities
| CVE | Title | Severity | CVSS |
|---|---|---|---|
| CVE-2026-110264 | Integer Overflow or Wraparound in GitLab | CRITICAL | 10.0 |
| CVE-2026-94603 | Podman: The `podman run` command can be instructed to disable almost all sandbox | CRITICAL | 10.0 |
| CVE-2022-36648 | The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in | CRITICAL | 10.0 |
| CVE-2026-77524 | KEDA: Privilege escalation from namespace admin to cluster admin via KEDA Trigge | CRITICAL | 9.9 |
| CVE-2026-115384 | Wasmtime 39.0.0 before 48.0.4 and 49.0.0 before 49.0.2 Stack Buffer Overflow | CRITICAL | 9.9 |
| CVE-2026-44210 | Kata Containers have VM Escape via virtiofsd Argument Injection through Default- | CRITICAL | 9.9 |
vulnfeed aggregates 17475 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.