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CVE-2010-0926· NVD / CVE Program· CNA mitre

The default configuration of smbd in Samba before 3.3.11, 3.4.x before 3.4.6, and 3.5.x before 3.5.0rc3, when a writable share exists, allow

Noroxi assessment

Priority: Plan (action score 40/100)

  • A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
  • Because a ready-made attack tool exists, priority is at least “Plan”.
  • Probability of exploitation in the next 30 days: 30.4% (FIRST EPSS); higher than 98.2% of all records.
  • Fixed version: samba (Debian:12) 2:3.4.6~dfsg-1; samba (openSUSE:Tumbleweed) 4.5.0-1.1; libsmbclient (Red Hat:enterprise_linux:5::client) 0:3.0.33-3.37.el5.

Add it to your regular patch cycle. Upgrade to samba (Debian:12) 2:3.4.6~dfsg-1; samba (openSUSE:Tumbleweed) 4.5.0-1.1; libsmbclient (Red Hat:enterprise_linux:5::client) 0:3.0.33-3.37.el5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The default configuration of smbd in Samba before 3.3.11, 3.4.x before 3.4.6, and 3.5.x before 3.5.0rc3, when a writable share exists, allows remote authenticated users to leverage a directory traversal vulnerability, and access arbitrary files, by using the symlink command in smbclient to create a symlink containing .. (dot dot) sequences, related to the combination of the unix extensions and wide links options.

LowCVSS 3.5 · v2.0—Weaponized Fix available
Published
Mar 10, 2010
Updated
Jun 16, 2026
EPSS
30.4% · 98th percentile

Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
14 / 40 · 3.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
9 / 30 · 30.4%
Ready-made attack tool
17 / 40 · floor: at least 40

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Weaponized exploit exists
  • A fix has been released

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
sambasamba

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • samba samba3.3.0
  • samba samba3.3.1
  • samba samba3.3.10
  • samba samba3.3.2
  • samba samba3.3.3
  • samba samba3.3.4
  • samba samba3.3.5
  • samba samba3.3.6
  • samba samba3.3.7
  • samba samba3.3.8
  • samba samba3.3.9
  • samba samba3.4.0
  • samba samba3.4.1
  • samba samba3.4.2
  • samba samba3.4.3
  • samba samba3.4.4
  • samba samba3.4.5
  • samba samba3.5.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12sambabefore 2:3.4.6~dfsg-12:3.4.6~dfsg-1
openSUSE:Tumbleweedsambabefore 4.5.0-1.14.5.0-1.1
Red Hat:enterprise_linux:5::clientlibsmbclientbefore 0:3.0.33-3.37.el50:3.0.33-3.37.el5
Red Hat:enterprise_linux:5::clientsamba-clientbefore 0:3.0.33-3.37.el50:3.0.33-3.37.el5
Red Hat:enterprise_linux:5::clientsamba-commonbefore 0:3.0.33-3.37.el50:3.0.33-3.37.el5
Red Hat:enterprise_linux:5::clientsamba-swatbefore 0:3.0.33-3.37.el50:3.0.33-3.37.el5
Red Hat:enterprise_linux:5::client_workstationlibsmbclient-develbefore 0:3.0.33-3.37.el50:3.0.33-3.37.el5
Red Hat:enterprise_linux:5::client_workstationsambabefore 0:3.0.33-3.37.el50:3.0.33-3.37.el5
Red Hat:enterprise_linux:5::client_workstationsamba-debuginfobefore 0:3.0.33-3.37.el50:3.0.33-3.37.el5

Same product

samba: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-7494Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious cliKEV
    99Now
  • CVE-2015-0240The 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 4.1.17, and 4.2.x befor
    66This week
  • CVE-2003-0085Buffer overflow in the SMB/CIFS packet fragment re-assembly code for SMB daemon (smbd) in Samba before 2.2.8, and Samba-TNG before 0.3.1, al
    66This week

Published before and after this one in the same product

  • ← EarlierCVE-2010-0787Mar 2, 2010 · client/mount.cifs.c in mount.cifs in smbfs in Samba 3.0.22, 3.0.28a, 3.2.3, 3.3.2, 3.4.0, and 3.4.5 allows local users to mount a CIFS share
    17Monitor
  • ← EarlierCVE-2010-0728Mar 10, 2010 · smbd in Samba 3.3.11, 3.4.6, and 3.5.0, when libcap support is enabled, runs with the CAP_DAC_OVERRIDE capability, which allows remote authe
    35Monitor
  • Later →CVE-2010-1635Jun 17, 2010 · The chain_reply function in process.c in smbd in Samba before 3.4.8 and 3.5.x before 3.5.2 allows remote attackers to cause a denial of serv
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:samba2:3.4.6~dfsg-1 · Debian:12Package registry (OSV)
opensuse:samba4.5.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:libsmbclient0:3.0.33-3.37.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:libsmbclient-devel0:3.0.33-3.37.el5 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:samba0:3.0.33-3.37.el5 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:samba-client0:3.0.33-3.37.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:samba-common0:3.0.33-3.37.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:samba-debuginfo0:3.0.33-3.37.el5 · Red Hat:enterprise_linux:5::client_workstationPackage registry (OSV)
red hat:samba-swat0:3.0.33-3.37.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2010-02-04
Exploit-DB entryremote2010-02-04
Metasploit moduleauxiliary/admin/smb/samba_symlink_traversalSamba Symlink Directory Traversalauxiliary—

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-35 d
  2. Published
  3. TodayOct 20, 2026+6068 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    P · data can be read
    Integrity
    none
    Availability
    none
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    None
    Availability impact
    None

    Weakness class (CWE)

    CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    CVSS vector

    AV:N/AC:M/Au:S/C:P/I:N/A:N

    nvd-primary

    Root cause

    A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

    The bug in code

    The whole CWE-22 class

    A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

    Vulnerable

    ts
    const file = path.join(ROOT, req.query.name);res.sendFile(file);

    Fixed

    ts
    const file = path.resolve(ROOT, req.query.name);if (!file.startsWith(ROOT + path.sep)) {  return res.sendStatus(400);}res.sendFile(file);

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    ATT&CK techniques

    —

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Show all references (19 more)

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records