Heap-based buffer overflow in the dcerpc_read_ncacn_packet_done function in librpc/rpc/dcerpc_util.c in winbindd in Samba 3.x before 3.6.22, 4.0.x before 4.0.13, and 4.1.x before 4.1.3 allows remote AD domain controllers to execute arbitrary code via an invalid fragment length in a DCE-RPC packet.
CVE-2013-4408
HIGHCVSS v2 · 8.38.3—Trending — 3 sources updated this week
EchelonGraph scoreLOW confidence
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 8.3 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:A/AC:L/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 2.7% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
Sources: epss, nvd_v2
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.7%CVSS v2: 8.3Exploit: None knownExposed services: —
A fix is available — apply it.
Internet exposure
The internet-exposure footprint is temporarily unavailable — the KEV-Exposure radar's record for this CVE could not be loaded just now. That is not a finding of zero exposed services; please retry shortly.
- CVSS v2.0 (legacy)
- 8.3HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 8.3HIGHlow confidence
- EG Risk
- 43EG Risk 43/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity83% × 45%Exploitation3% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 2.7%
- EPSS %ILE
- 85th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
December 10, 2013
Last Modified
April 29, 2026
Advisory Details (1)
0
NONE
2013-12-10 06:14:55.087+00
Affected: [{"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html", "source": "[email protected]"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html", "source": "[email protected]"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2014-01/msg00002.html", "source": "[email protected]"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html", "source": "[email protected]"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html", "source": "[email protected]"}, {"url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00088.html", "source": "[email protected]"}, {"url": "http://lists.opensuse.org/opensuse-updates/2014-03/msg00063.html", "source": "[email protected]"}, {"url": "http://marc.info/?l=bugtraq&m=141660010015249&w=2", "source": "[email protected]"}, {"url": "http://rhn.redhat.com/errata/RHSA-2013-1805.html", "source": "[email protected]"}, {"url": "http://rhn.redhat.com/errata/RHSA-2013-1806.html", "source": "[email protected]"}, {"url": "http://rhn.redhat.com/errata/RHSA-2014-0009.html", "source": "[email protected]"}, {"url": "http://security.gentoo.org/glsa/glsa-201502-15.xml", "source": "[email protected]"}, {"url": "http://www.debian.org/security/2013/dsa-2812", "source": "[email protected]"}, {"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:299", "source": "[email protected]"}, {"url": "http://www.samba.org/samba/ftp/patches/security/samba-4.1.2-CVE-2013-4408-CVE-2012-6150.patch", "source": "[email protected]"}, {"url": "http://www.samba.org/samba/security/CVE-2013-4408", "tags": ["Vendor Advisory"], "source": "[email protected]"}, {"url": "http://www.securityfocus.com/bid/64191", "source": "[email protected]"}, {"url": "http://www.ubuntu.com/usn/USN-2054-1", "source": "[email protected]"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2014-01/msg00002.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00088.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-updates/2014-03/msg00063.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://marc.info/?l=bugtraq&m=141660010015249&w=2", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2013-1805.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2013-1806.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2014-0009.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://security.gentoo.org/glsa/glsa-201502-15.xml", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2013/dsa-2812", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:299", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.samba.org/samba/ftp/patches/security/samba-4.1.2-CVE-2013-4408-CVE-2012-6150.patch", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.samba.org/samba/security/CVE-2013-4408", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/64191", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-2054-1", "source": "af854a3a-2127-422b-91ae-364da2661108"}]
Heap-based buffer overflow in the dcerpc_read_ncacn_packet_done function in librpc/rpc/dcerpc_util.c in winbindd in Samba 3.x before 3.6.22, 4.0.x before 4.0.13, and 4.1.x before 4.1.3 allows remote AD domain controllers to execute arbitrary code via an invalid fragment length in a DCE-RPC packet.Vendor Advisories for CVE-2013-4408
Vendor advisories for this CVE are temporarily unavailable — the list could not be loaded just now. That is not a sign that none exist; please retry shortly.
Affected Packages
(6 across 6 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| samba | — |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| samba | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| samba | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| samba | — |
| — |
Debian:6.0(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| samba | 2:3.5.6~dfsg-3 ... 2:3.5.6~dfsg-3squeeze9 (11 versions) |
| — |
Debian:7(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| samba | 2:3.6.6-6, 2:3.6.6-6+deb7u1, 2:3.6.6-6+deb7u1~bpo60+1, 2:3.6.6-6+deb7u2~bpo60+1 |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownDebian:6.0:samba
- CVE-2015-0240EG 10.0EPSS p100HIGH
- CVE-2015-5252EG 7.2EPSS p96HIGH
- CVE-2015-5296EG 5.4EPSS p94MEDIUM
- CVE-2015-5299EG 5.3EPSS p96MEDIUM
- CVE-2013-4475EG 4.0EPSS p95MEDIUM
- CVE-2012-1182EG 10.0EPSS p99HIGH
- CVE-2011-2522EG 6.8EPSS p95MEDIUM
- CVE-2012-2111EG 6.5EPSS p92MEDIUM
- CVE-2013-0214EG 5.1MEDIUM
- CVE-2013-0213EG 5.1MEDIUM
Same CWE
10 shownCWE-119
Frequently asked(4)
What is CVE-2013-4408?
CVE-2013-4408 is a high vulnerability published on December 10, 2013. Heap-based buffer overflow in the dcerpcreadncacnpacketdone function in librpc/rpc/dcerpc_util.c in winbindd in Samba 3.x before 3.6.22, 4.0.x before 4.0.13, and 4.1.x before 4.1.3 allows remote AD domain controllers to execute arbitrary code via an invalid fragment length in a DCE-RPC packet.
When was CVE-2013-4408 disclosed?
CVE-2013-4408 was first published on December 10, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-4408 actively exploited?
CVE-2013-4408 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.7% probability of exploitation in the next 30 days (85th percentile of EPSS-scored CVEs).
How do I remediate CVE-2013-4408?
A fix for CVE-2013-4408 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2013-4408
Is Your Infrastructure Affected by CVE-2013-4408?
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