Heap-based buffer overflow in the receive_smb_raw function in util/sock.c in Samba 3.0.0 through 3.0.29 allows remote attackers to execute arbitrary code via a crafted SMB response.
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Score elevated to 9.0 because EPSS predicts 86% probability of exploitation within the next 30 days (top 0.6% of all CVEs). Confidence: see factors.
Heap-based buffer overflow in the receive_smb_raw function in util/sock.c in Samba 3.0.0 through 3.0.29 allows remote attackers to execute arbitrary code via a crafted SMB response.
May 29, 2008
April 23, 2026
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | samba (3.0.28a-1ubuntu4.2) @ hardy | 2026-05-30 | ubuntu |
| ubuntu | libsmbclient (3.0.26a-1ubuntu2.5) @ gutsy | 2026-05-30 | ubuntu |
| redhat | samba-0:3.0.28-1.el5_2.1 | 2008-05-28 | redhat |
| redhat | samba-0:3.0.25b-1.el4_6.5 | 2008-05-28 | redhat |
| redhat | samba-0:3.0.10-2.el4_5.3 | 2008-05-28 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Samba 3.0.29 (Client) - 'receive_smb_raw()' Buffer Overflow (PoC)
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redhat
CWE-119