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.
CVE-2010-2063
“—” beside the score: it is equal to NVD's CVSS v2 base score.
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.5 — NVD rates that HIGH (NVD's v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; no CRITICAL band). Vector AV:N/AC:L/Au:N/C:P/I:P/A:P. 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 79% exploitation probability in the next 30 days; it does not lift the v2 base. EPSS sets EG Risk's exploitation input. Confidence: LOW.
- High exploitation likelihood — EPSS 79%
- Public exploit code is available (Metasploit, Exploit-DB, marked verified by Exploit-DB)
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 7.5HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 7.5HIGHlow confidence
- EG Risk
- 65EG Risk 65/100
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 computed (value × EchelonGraph’s weight)Severity75% × 45%The EG Score, 7.5 of 10.Exploitation79% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.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
- 79%
- EPSS %ILE
- 99th
- KEV
- Not listed
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
June 17, 2010
Last Modified
April 29, 2026
References (34)
- secalert@redhat · CVE Programhttp://labs.idefense.com/intelligence/vulnerabilities/display.php?id=873Broken Link
- secalert@redhat · CVE Programhttp://lists.apple.com/archives/security-announce/2010//Aug/msg00003.htmlMailing List · Third Party Advisory
- secalert@redhat · CVE Programhttp://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.htmlMailing List · Third Party Advisory
- secalert@redhat · CVE Programhttp://marc.info/?l=bugtraq&m=129138831608422&w=2Mailing List · Third Party Advisory
- secalert@redhat · CVE Programhttp://marc.info/?l=bugtraq&m=130835366526620&w=2Mailing List · Third Party Advisory
- secalert@redhat · CVE Programhttp://marc.info/?l=samba-announce&m=127668712312761&w=2Mailing List · Patch · Third Party Advisory
- secalert@redhat · CVE Programhttp://osvdb.org/65518 (archived copy: the site no longer serves it)Broken Link
- secalert@redhat · CVE Programhttp://secunia.com/advisories/40145 (archived copy: the site no longer serves it)Third Party Advisory
- secalert@redhat · CVE Programhttp://secunia.com/advisories/40210 (archived copy: the site no longer serves it)Third Party Advisory
- secalert@redhat · CVE Programhttp://secunia.com/advisories/40221 (archived copy: the site no longer serves it)Third Party Advisory
- secalert@redhat · CVE Programhttp://secunia.com/advisories/40293 (archived copy: the site no longer serves it)Third Party Advisory
- secalert@redhat · CVE Programhttp://secunia.com/advisories/42319 (archived copy: the site no longer serves it)Third Party Advisory
- secalert@redhat · CVE Programhttp://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.471914Mailing List · Third Party Advisory
- secalert@redhat · CVE Programhttp://support.apple.com/kb/HT4312Third Party Advisory
- secalert@redhat · CVE Programhttp://ubuntu.com/usn/usn-951-1Third Party Advisory
15 of 34 shown · show the other 19
- secalert@redhat · CVE Programhttp://www.debian.org/security/2010/dsa-2061Third Party Advisory
- secalert@redhat · CVE Programhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:119Third Party Advisory
- secalert@redhat · CVE Programhttp://www.redhat.com/support/errata/RHSA-2010-0488.htmlThird Party Advisory
- secalert@redhat · CVE Programhttp://www.samba.org/samba/ftp/history/samba-3.3.13.htmlVendor Advisory
- secalert@redhat · CVE Programhttp://www.samba.org/samba/ftp/patches/security/samba-3.0.37-CVE-2010-2063.patchPatch · Vendor Advisory
- secalert@redhat · CVE Programhttp://www.samba.org/samba/ftp/patches/security/samba-3.3.12-CVE-2010-2063.patchPatch · Vendor Advisory
- secalert@redhat · CVE Programhttp://www.samba.org/samba/security/CVE-2010-2063.htmlVendor Advisory
- secalert@redhat · CVE Programhttp://www.securityfocus.com/bid/40884 (archived copy: the site no longer serves it)Third Party Advisory · VDB Entry
- secalert@redhat · CVE Programhttp://www.securitytracker.com/id?1024107Third Party Advisory · VDB Entry
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2010/1486Permissions Required
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2010/1504Permissions Required
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2010/1505Permissions Required
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2010/1507Permissions Required
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2010/1517Permissions Required
- secalert@redhat · CVE Programhttp://www.vupen.com/english/advisories/2010/3063Permissions Required
- secalert@redhat · CVE Programhttps://exchange.xforce.ibmcloud.com/vulnerabilities/59481Third Party Advisory · VDB Entry
- secalert@redhat · CVE Programhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12427Third Party Advisory
- secalert@redhat · CVE Programhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7115Third Party Advisory
- secalert@redhat · CVE Programhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9859Third Party Advisory
Vendor Advisories for CVE-2010-2063(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(2)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | samba (2:3.3.2-1ubuntu3.5) @ jaunty | 2026-05-29 | ubuntu |
| redhat | samba-0:3.0.33-3.15.el5_4.2 | 2010-06-16 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(5 across 5 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:5.0(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| samba | 2:3.2.5-4 ... 2:3.2.5-4lenny9 (11 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 4× in last 7d / 12× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 20 repeat rows among the latest 87 are merged into the row they repeat.
- 2026-10-12 01:48 UTCEG score recompute
- 2026-10-09 20:00 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-10-07 23:38 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-10-05 17:37 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-10-01 20:10 UTCOSV refresh
- 2026-09-29 08:06 UTCEG score recompute
- 2026-09-26 15:52 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-24 13:57 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-16 13:58 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-15 03:04 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-12 14:54 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-12 14:53 UTCOSV refresh
- 2026-09-10 09:24 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-06 13:41 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-05 15:22 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-09-04 13:55 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-08-28 21:34 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-08-25 13:43 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-08-24 20:03 UTCOSV refresh
- 2026-08-19 16:58 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-08-18 13:42 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-08-16 02:09 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-08-08 13:19 UTCOSV refresh
- 2026-07-26 13:41 UTCEG score recomputeAssessed again: 7.5 HIGH
- 2026-07-25 14:12 UTCEPSS rescoreEPSS 79% · 99th percentile
Show 42 moreShow fewer
- 2026-07-23 06:19 UTCOSV refresh
- 2026-07-23 01:01 UTCEG score recompute
- 2026-07-23 00:38 UTCEG score recompute▼ 8.00
- 2026-07-23 00:06 UTCEG score recomputeFirst assessed: 8.0 HIGH
- 2026-07-22 21:45 UTCEG score recompute
- 2026-07-22 14:03 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-07-21 15:20 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-07-20 17:03 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-07-16 16:58 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-07-15 16:54 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-07-06 00:59 UTCOSV refresh
- 2026-07-02 14:01 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-30 23:19 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-25 13:46 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-24 14:02 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-23 21:29 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-21 14:53 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-17 17:49 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-17 12:13 UTCOSV refresh
- 2026-06-15 17:44 UTCEPSS rescoreEPSS 79% · 99th percentile
- 2026-06-14 23:14 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-12 23:08 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-11 13:56 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-10 22:14 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-08 14:13 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-07 15:22 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-06 13:44 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-05 22:44 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-05 06:07 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-06-01 13:49 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-31 00:13 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-29 13:40 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-29 11:13 UTCEG score recompute
- 2026-05-29 11:13 UTCVendor advisory
- 2026-05-29 11:13 UTCGHSA enrichmentGHSA-ghx2-3q8p-8mw6 · GitHub severity HIGH
- 2026-05-28 13:42 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-27 13:38 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-26 13:41 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-24 16:43 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-22 21:15 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-20 22:37 UTCEPSS rescoreEPSS 78% · 99th percentile
- 2026-05-18 21:29 UTCEPSS rescoreEPSS 78% · 99th percentile
Publicly available exploits
(2 references)Public exploit code is referenced for this CVE (1 Metasploit module, 1 Exploit-DB entry). Defenders should treat patch urgency accordingly.
- Exploit-DBEDB-16860✓ verifiedPublished Sep 4, 2010
Samba 3.3.12 (Linux x86) - 'chain_reply' Memory Corruption (Metasploit)
Open source ↗ - Metasploitexploit/linux/samba/chain_reply✓ verifiedPublished Jul 16, 2010
Samba chain_reply Memory Corruption (Linux x86)
Open source ↗
Related CVEs(same product + same CWE)
Same product
10 shownDebian:5.0:samba
- CVE-2007-2446EG 10.0EPSS p100HIGH
- CVE-2009-1886EG 9.3EPSS p96HIGH
- CVE-2007-6015EG 9.3EPSS p98HIGH
- CVE-2010-3069EG 7.5EPSS p96HIGH
- CVE-2007-2444EG 7.2HIGH
- CVE-2011-2522EG 6.8EPSS p96MEDIUM
- CVE-2009-2813EG 6.0MEDIUM
- CVE-2007-2447EG 6.0EPSS p99MEDIUM
- CVE-2009-1888EG 5.8EPSS p91MEDIUM
- CVE-2011-0719EG 5.0EPSS p92MEDIUM
Same CWE
10 shownCWE-119
- CVE-2010-1748EG 4.3EPSS p94MEDIUM
- CVE-2010-1642EG 5.0MEDIUM
- CVE-2010-2311EG 9.3EPSS p93HIGH
- CVE-2010-2309EG 7.5EPSS p99HIGH
- CVE-2010-2305EG 9.3EPSS p97HIGH
- CVE-2010-1932EG 9.3EPSS p96HIGH
- CVE-2010-2321EG 9.3EPSS p97HIGH
- CVE-2010-2329EG 9.3EPSS p94HIGH
- CVE-2010-2330EG 9.3EPSS p98HIGH
- CVE-2010-2331EG 9.3EPSS p93HIGH
Frequently asked(4)
What is CVE-2010-2063?
When was CVE-2010-2063 made public?
Is CVE-2010-2063 actively exploited?
How do I remediate CVE-2010-2063?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2010-2063
Is Your Infrastructure Affected by CVE-2010-2063?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.