CVE & CISA-KEV Catalog

CVE-2010-2063

HIGHEPSS 100th pctl
7.5
CVSS v2
NVD

Description

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.

How to fix

Remediation Available
sambaDebian
Fixed in:2:3.4.0~pre1-1CVE-2010-2063
Fixed in:2:3.4.0~pre1-1CVE-2010-2063
Fixed in:2:3.4.0~pre1-1CVE-2010-2063
Fixed in:2:3.4.0~pre1-1CVE-2010-2063

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

78.56%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-4966Critical9.4100%KEV + RansomFix
CVE-2017-11882High7.8100%KEV + Ransom-
CVE-2020-0796Critical10.0100%KEV + Ransom-
CVE-2008-4250Critical9.899%KEV-
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-0014High10.097%--

Common questions

How do I fix CVE-2010-2063?

Upgrade samba on debian 11 to 2:3.4.0~pre1-1 or later.

Is CVE-2010-2063 being actively exploited?

Not that we know of. CVE-2010-2063 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 78.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2010-2063?

CVE-2010-2063 has a CVSS v2 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2010-2063 affect?

Published advisories record a fix for samba (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.