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CVE-2010-2063· NVD / CVE Program· CNA redhat

Buffer overflow in the SMB1 packet chaining implementation in the chain_reply function in process.c in smbd in Samba 3.0.x before 3.3.13 all

Noroxi assessment

Priority: Plan (action score 54/100)

  • A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 78.5% (FIRST EPSS); higher than 99.5% of all records.
  • No special conditions are required; it is repeatable.
  • Fixed version: samba (Debian:12) 2:3.4.0~pre1-1; samba (Debian:5.0) 2:3.2.5-4lenny12; samba (openSUSE:Tumbleweed) 4.5.0-1.1.

Add it to your regular patch cycle. Upgrade to samba (Debian:12) 2:3.4.0~pre1-1; samba (Debian:5.0) 2:3.2.5-4lenny12; samba (openSUSE:Tumbleweed) 4.5.0-1.1 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

Buffer overflow in the SMB1 packet chaining implementation in the chain_reply function in process.c in smbd in Samba 3.0.x before 3.3.13 allows remote attackers to cause a denial of service (memory corruption and daemon crash) or possibly execute arbitrary code via a crafted field in a packet.

HighCVSS 7.5 · v2.0—Weaponized Fix available
Published
Jun 17, 2010
Updated
Jun 16, 2026
EPSS
78.5% · 99th percentile

Report tools

JSON

Action score

54

Plan

Add it to your regular patch cycle.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
24 / 30 · 78.5%

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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Follow CVE-2010-2063

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
canonicalubuntu linux
debiandebian linux

Affected versions

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

  • canonical ubuntu linux6.06
  • canonical ubuntu linux8.04
  • canonical ubuntu linux9.04
  • debian debian linux5.0
  • samba samba3.0.0 and later · up to 3.3.12 inclusive

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12sambabefore 2:3.4.0~pre1-12:3.4.0~pre1-1
Debian:5.0sambabefore 2:3.2.5-4lenny122:3.2.5-4lenny12
openSUSE:Tumbleweedsambabefore 4.5.0-1.14.5.0-1.1
Red Hat:enterprise_linux:3::assambabefore 0:3.0.9-1.3E.170:3.0.9-1.3E.17
Red Hat:enterprise_linux:3::assamba-clientbefore 0:3.0.9-1.3E.170:3.0.9-1.3E.17
Red Hat:enterprise_linux:3::assamba-commonbefore 0:3.0.9-1.3E.170:3.0.9-1.3E.17
Red Hat:enterprise_linux:3::assamba-debuginfobefore 0:3.0.9-1.3E.170:3.0.9-1.3E.17
Red Hat:enterprise_linux:3::assamba-swatbefore 0:3.0.9-1.3E.170:3.0.9-1.3E.17
Red Hat:enterprise_linux:4::assambabefore 0:3.0.33-0.19.el4_8.10:3.0.33-0.19.el4_8.1
Red Hat:enterprise_linux:4::assamba-clientbefore 0:3.0.33-0.19.el4_8.10:3.0.33-0.19.el4_8.1
Red Hat:enterprise_linux:4::assamba-commonbefore 0:3.0.33-0.19.el4_8.10:3.0.33-0.19.el4_8.1
Red Hat:enterprise_linux:4::assamba-debuginfobefore 0:3.0.33-0.19.el4_8.10:3.0.33-0.19.el4_8.1
Red Hat:enterprise_linux:4::assamba-swatbefore 0:3.0.33-0.19.el4_8.10:3.0.33-0.19.el4_8.1
Red Hat:enterprise_linux:5::clientlibsmbclientbefore 0:3.0.33-3.29.el5_50:3.0.33-3.29.el5_5
Red Hat:enterprise_linux:5::clientlibsmbclient-develbefore 0:3.0.33-3.29.el5_50:3.0.33-3.29.el5_5
Red Hat:enterprise_linux:5::clientlibtallocbefore 0:1.2.0-52.el5_50:1.2.0-52.el5_5
Red Hat:enterprise_linux:5::clientlibtalloc-develbefore 0:1.2.0-52.el5_50:1.2.0-52.el5_5
Red Hat:enterprise_linux:5::clientlibtdbbefore 0:1.1.2-52.el5_50:1.1.2-52.el5_5
Red Hat:enterprise_linux:5::clientlibtdb-develbefore 0:1.1.2-52.el5_50:1.1.2-52.el5_5
Red Hat:enterprise_linux:5::clientsambabefore 0:3.0.33-3.29.el5_50:3.0.33-3.29.el5_5
Red Hat:enterprise_linux:5::clientsamba-clientbefore 0:3.0.33-3.29.el5_50:3.0.33-3.29.el5_5
Red Hat:enterprise_linux:5::clientsamba-commonbefore 0:3.0.33-3.29.el5_50:3.0.33-3.29.el5_5
Red Hat:enterprise_linux:5::clientsamba-debuginfobefore 0:3.0.33-3.29.el5_50:3.0.33-3.29.el5_5
Red Hat:enterprise_linux:5::clientsamba-swatbefore 0:3.0.33-3.29.el5_50:3.0.33-3.29.el5_5

+25

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
  • CVE-2003-0201Buffer overflow in the call_trans2open function in trans2.c for Samba 2.2.x before 2.2.8a, 2.0.10 and earlier 2.0.x versions, and Samba-TNG
    65This week
  • CVE-2007-2446Multiple heap-based buffer overflows in the NDR parsing in smbd in Samba 3.0.0 through 3.0.25rc3 allow remote attackers to execute arbitrary
    63This week
  • CVE-2012-1182The 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 validation of an array len
    62This week

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:samba2:3.4.0~pre1-1 · Debian:12Package registry (OSV)
opensuse:samba4.5.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:libsmbclient0:3.0.33-3.29.el5_5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:libsmbclient-devel0:3.0.33-3.29.el5_5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:libtalloc0:1.2.0-52.el5_5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:libtalloc-devel0:1.2.0-52.el5_5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:libtdb0:1.1.2-52.el5_5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:libtdb-devel0:1.1.2-52.el5_5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:samba0:3.0.9-1.3E.17 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:samba-client0:3.0.9-1.3E.17 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:samba-common0:3.0.9-1.3E.17 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:samba-debuginfo0:3.0.9-1.3E.17 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:samba-swat0:3.0.9-1.3E.17 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:samba3x0:3.3.8-0.52.el5_5 · 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 ×1

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 entryremote2010-09-04
Metasploit moduleexploit/linux/samba/chain_replySamba chain_reply Memory Corruption (Linux x86)exploit2010-06-16

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. Metasploit-2 d
  2. Published
  3. First PoC+78 d
  4. TodayOct 18, 2026+5967 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.

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

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
P · data or configuration can be modified
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
P
Integrity impact
P
Availability impact
P

Weakness class (CWE)

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

CVSS vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

nvd-primary

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