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CVE-2002-0391

57
FAUCET Score

CVE-2002-0391 describes an integer overflow vulnerability in the xdr_array function of RPC servers, impacting operating systems utilizing libc, glibc, or SunRPC-derived code, including FreeBSD, Microsoft, OpenBSD, and Sun products. This critical vulnerability (CVSS 9.8) allows remote attackers to execute arbitrary code by supplying a large number of arguments to RPC services like rpc.cmsd and dmispd, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity and potential for remote code execution, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.6.1CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
3.1CPE matchmatch criteria
cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:*
2.6CPE matchmatch criteria
cpe:2.3:o:sun:solaris:2.6:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:sun:solaris:9.0:*:*:*:*:sparc:*:*
5.5.1CPE matchmatch criteria
cpe:2.3:o:sun:sunos:5.5.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
58.13%
Probability of exploitation in next 30 days
EPSS Percentile
99.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.5813 is in the 97th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 6.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch

Vendor Advisories (1)

redhatCVE-2002-0391Important

security flaw

Jul 29, 2002

References

ftp.caldera.com / pub/security/OpenLinux/CSSA-2002-055.0.txt
Broken Link
ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2002-011.txt.asc
Broken Link
patches.sgi.com / support/free/security/advisories/20020801-01-A
Broken Link
patches.sgi.com / support/free/security/advisories/20020801-01-P
Broken Link
archives.neohapsis.com / archives/aix/2002-q4/0002.html
Broken Link
archives.neohapsis.com / archives/bugtraq/2002-07/0514.html
Broken Link
archives.neohapsis.com / archives/hp/2002-q3/0077.html
Broken Link
bvlive01.iss.net / issEn/delivery/xforce/alertdetail.jsp
Broken LinkVendor Advisory
distro.conectiva.com.br / atualizacoes
Broken Link
distro.conectiva.com.br / atualizacoes
Broken Link
marc.info
ExploitMailing List
marc.info
ExploitMailing List
marc.info
ExploitMailing List
marc.info
ExploitMailing List
marc.info
Mailing List
online.securityfocus.com / advisories/4402
Broken LinkThird Party AdvisoryVDB Entry
online.securityfocus.com / archive/1/285740
Broken LinkThird Party AdvisoryVDB Entry
rhn.redhat.com / errata/RHSA-2002-166.html
Broken Link
rhn.redhat.com / errata/RHSA-2002-172.html
Broken Link
docs.microsoft.com / en-us/security-updates/securitybulletins/2002/ms02-057
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A42
Broken Link
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4728
Broken Link
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9
Broken Link
cert.org / advisories/CA-2002-25.html
PatchThird Party AdvisoryUS Government Resource
debian.org / security/2002/dsa-142
Broken Link
debian.org / security/2002/dsa-143
Broken Link
debian.org / security/2002/dsa-146
Broken Link
debian.org / security/2002/dsa-149
Broken Link
debian.org / security/2003/dsa-333
Broken Link
iss.net / security_center/static/9170.php
Broken Link
kb.cert.org / vuls/id/192995
Third Party AdvisoryUS Government Resource
linuxsecurity.com / advisories/other_advisory-2399.html
Broken Link
mandrakesoft.com / security/advisories
Broken Link
redhat.com / support/errata/RHSA-2002-167.html
Broken Link
redhat.com / support/errata/RHSA-2002-173.html
Broken Link
redhat.com / support/errata/RHSA-2003-168.html
Broken Link
redhat.com / support/errata/RHSA-2003-212.html
Broken Link
securityfocus.com / bid/5356
Broken LinkThird Party AdvisoryVDB Entry