What is CVE-2010-3069?

CVE-2010-3069 is a vulnerability in Samba, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2010-09-15.

Is CVE-2010-3069 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Samba

CVE-2010-3069

Stack-based buffer overflow in the (1) sid_parse and (2) dom_sid_parse functions in Samba before 3.5.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted Windows Security ID (SID) on a file share.

Vulnerability class: Buffer Overflow

Published 2010-09-15 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.105 (95.6th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.105 · newest: 0.105 · change: 0.000

Affected products

Samba
Canonical Ubuntu Linux — versions 6.06, 10.04, 9.04

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

marc.info/ (vendor-advisory, Mailing List, Third Party Advisory)
secunia.com/advisories/42885 (Third Party Advisory, third-party-advisory)
www.vupen.com/english/advisories/2010/2378 (Permissions Required, vdb-entry)
support.apple.com/kb/HT4723 (Third Party Advisory)
lists.fedoraproject.org/pipermail/package-announce/2010-September/047697.html (vendor-advisory, Mailing List, Third Party Advisory)
us1.samba.org/samba/security/CVE-2010-3069.html (Vendor Advisory)
secunia.com/advisories/41354 (Third Party Advisory, third-party-advisory)
lists.apple.com/archives/security-announce/2011//Jun/msg00000.html (vendor-advisory, Mailing List, Third Party Advisory)
lists.apple.com/archives/security-announce/2011/Mar/msg00006.html (vendor-advisory, Mailing List, Third Party Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/61773 (VDB Entry, vdb-entry)

Frequently asked questions

What is CVE-2010-3069?: CVE-2010-3069 is a vulnerability in Samba, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2010-09-15.
Is CVE-2010-3069 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.