CVE-2012-0870

CVE-2012-0870 is a high-severity vulnerability in Samba with a CVSS 2.0 base score of 7.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: High (CVSS 2.0 base score 7.9)
• EPSS exploit prediction: 6% (93rd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Samba
• Published: 2012-02-23
• Last modified: 2026-06-16

Description

Heap-based buffer overflow in process.c in smbd in Samba 3.0, as used in the file-sharing service on the BlackBerry PlayBook tablet before 2.0.0.7971 and other products, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a Batched (aka AndX) request that triggers infinite recursion.

Frequently asked questions

What is CVE-2012-0870?

Heap-based buffer overflow in process.c in smbd in Samba 3.0, as used in the file-sharing service on the BlackBerry PlayBook tablet before 2.0.0.7971 and other products, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a Batched (aka AndX) request that triggers infinite recursion.

How severe is CVE-2012-0870?

CVE-2012-0870 has a CVSS 2.0 base score of 7.9, rated high severity.

Is CVE-2012-0870 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0870?

CVE-2012-0870 primarily affects Samba. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0870?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-0870 published?

CVE-2012-0870 was published on 2012-02-23 and last updated on 2026-06-16.

References

• http://btsc.webapps.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB29565
• http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00008.html
• http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00009.html
• http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00008.html
• http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00014.html
• http://secunia.com/advisories/48116
• http://secunia.com/advisories/48186
• http://secunia.com/advisories/48844
• http://secunia.com/advisories/48879
• http://support.apple.com/kb/HT5281
• http://www.ubuntu.com/usn/USN-1374-1
• https://bugzilla.redhat.com/show_bug.cgi?id=795509
• https://exchange.xforce.ibmcloud.com/vulnerabilities/73361

Affected products (12)

• cpe:2.3:a:samba:samba:3.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:rim:blackberry_playbook_tablet:-:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:*:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.5:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.6:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.7:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.7.2942:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.7.3312:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.8.4985:*:*:*:*:*:*:*
• cpe:2.3:o:rim:blackberry_playbook_os:1.0.8.6067:*:*:*:*:*:*:*

More vulnerabilities in Samba

• CVE-2015-0240 — Critical (CVSS 10.0): The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before…
• CVE-2012-1182 — Critical (CVSS 10.0): The RPC code generator in Samba 3.x before 3.4.16, 3.5.x before 3.5.14, and 3.6.x before 3.6.4 does not implement…
• CVE-2007-2446 — Critical (CVSS 10.0): Multiple heap-based buffer overflows in the NDR parsing in smbd in Samba 3.0.0 through 3.0.25rc3 allow remote attackers…
• CVE-2004-0882 — Critical (CVSS 10.0): Buffer overflow in the QFILEPATHINFO request handler in Samba 3.0.x through 3.0.7 may allow remote attackers to execute…
• CVE-2004-1154 — Critical (CVSS 10.0): Integer overflow in the Samba daemon (smbd) in Samba 2.x and 3.0.x through 3.0.9 allows remote authenticated users to…
• CVE-2004-0600 — Critical (CVSS 10.0): Buffer overflow in the Samba Web Administration Tool (SWAT) in Samba 3.0.2 to 3.0.4 allows remote attackers to execute…

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• CVE-2026-93741 — Critical (CVSS 10.0): A security flaw has been discovered in Totolink A3002MU Hh-B20211125.1046. Affected by this vulnerability is the…
• CVE-2026-93740 — Critical (CVSS 10.0): A vulnerability was identified in Totolink A3002MU Hh-B20211125.1046. Affected is the function formWlEncrypt of the…
• CVE-2026-86296 — Critical (CVSS 10.0): A vulnerability was determined in D-Link DIR-822A A_101. This vulnerability affects the function strcpy of the file…
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