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CVE-2002-0083

48
FAUCET Score

CVE-2002-0083 describes an off-by-one error in the channel code of OpenSSH versions 2.0 through 3.0.2, impacting various Linux distributions like Red Hat, SuSE, and Mandrake. This critical vulnerability (CVSS 9.8) allows local users or remote malicious servers to gain privileges, requiring no user interaction and having a high impact on confidentiality, integrity, and availability. While not on the KEV catalog, exploit code is publicly available via ExploitDB, and the CVE has garnered significant community discussion with 10 mentions.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:a:immunix:immunix:7.0:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:mandrakesoft:mandrake_single_network_firewall:7.2:*:*:*:*:*:*:*
>= 2.0, < 3.1CPE matchmatch criteria
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:openpkg:openpkg:1.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:conectiva:linux:5.0:*:*:*:*:*:*:*

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
14.80%
Probability of exploitation in next 30 days
EPSS Percentile
96.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-21314 · Mar 7, 2002
This CVE's current EPSS score of 0.1480 is in the 92nd percentile among its peer group of 36,835 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 (4)

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
debianvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2002-0083

security flaw

Mar 7, 2002

References

ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:13.openssh.asc
Broken Link
ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2002-004.txt.asc
Broken Link
stage.caldera.com / pub/security/openserver/CSSA-2002-SCO.10/CSSA-2002-SCO.10.txt
Broken Link
stage.caldera.com / pub/security/openunix/CSSA-2002-SCO.11/CSSA-2002-SCO.11.txt
Broken Link
archives.neohapsis.com / archives/bugtraq/2002-03/0108.html
Broken Link
archives.neohapsis.com / archives/vulnwatch/2002-q1/0060.html
Broken Link
distro.conectiva.com.br / atualizacoes
Broken Link
marc.info
Mailing List
marc.info
Mailing List
marc.info
Mailing List
marc.info
Mailing ListPatch
online.securityfocus.com / advisories/3960
Broken LinkThird Party AdvisoryVDB Entry
online.securityfocus.com / archive/1/264657
Broken LinkThird Party AdvisoryVDB Entry
calderasystems.com / support/security/advisories/CSSA-2002-012.0.txt
Broken Link
debian.org / security/2002/dsa-119
Broken LinkVendor Advisory
iss.net / security_center/static/8383.php
Broken Link
linux-mandrake.com / en/security/2002/MDKSA-2002-019.php
Broken Link
linuxsecurity.com / advisories/other_advisory-1937.html
Broken LinkPatchVendor Advisory
novell.com / linux/security/advisories/2002_009_openssh_txt.html
Broken Link
openbsd.org / advisories/ssh_channelalloc.txt
Vendor Advisory
osvdb.org / 730
Broken Link
redhat.com / support/errata/RHSA-2002-043.html
Broken Link
securityfocus.com / bid/4241
Broken LinkThird Party AdvisoryVDB Entry