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: 21.1% (top 3% 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 · 1102 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-2026-42960 | Possible cache poisoning via promiscuous records for the authority section | CRITICAL | 10.0 |
| CVE-2026-46595 | Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x | CRITICAL | 10.0 |
| CVE-2026-39821 | Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/ne | CRITICAL | 10.0 |
| CVE-2026-40175 | Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain | CRITICAL | 10.0 |
| CVE-2024-24576 PoC | Rusts's `std::process::Command` did not properly escape arguments of batch files | 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 |
vulnfeed aggregates 10939 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.