CVE-2002-0083: Off-by-one error in the channel code of OpenSSH 2.0 through 3.0.2 allows local users or remote malicious servers to gain privileges.
Noroxi assessment
Priority: Plan (action score 43/100)
- Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 14.6% (FIRST EPSS); higher than 96.7% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.
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
- Published
- Mar 15, 2002
- Updated
- Jun 16, 2026
- EPSS
- 14.6% · 96th percentile
- CWE
- CWE-193
Report tools
Action score
43
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 4 / 30 · 14.6%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi 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.
We use this product, ask for helpAffected 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.
| Vendor | Product | CPE |
|---|---|---|
| immunix | immunix | cpe:2.3:a:immunix:immunix |
| mandrakesoft | mandrake single network firewall | cpe:2.3:a:mandrakesoft:mandrake_single_network_firewall |
| openbsd | openssh | cpe:2.3:a:openbsd:openssh |
| openpkg | openpkg | cpe:2.3:a:openpkg:openpkg |
| conectiva | linux | cpe:2.3:o:conectiva:linux |
| engardelinux | secure linux | cpe:2.3:o:engardelinux:secure_linux |
| mandrakesoft | mandrake linux | cpe:2.3:o:mandrakesoft:mandrake_linux |
| mandrakesoft | mandrake linux corporate server | cpe:2.3:o:mandrakesoft:mandrake_linux_corporate_server |
| redhat | linux | cpe:2.3:o:redhat:linux |
| suse | suse linux | cpe:2.3:o:suse:suse_linux |
| trustix | secure linux | cpe:2.3:o:trustix:secure_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- conectiva linux5.0
- conectiva linux5.1
- conectiva linux6.0
- conectiva linux7.0
- conectiva linuxecommerce
- conectiva linuxgraficas
- engardelinux secure linux1.0.1
- immunix immunix7.0
+12 more rows
- mandrakesoft mandrake linux7.1
- mandrakesoft mandrake linux7.2
- mandrakesoft mandrake linux8.0
- mandrakesoft mandrake linux8.1
- mandrakesoft mandrake linux corporate server1.0.1
- mandrakesoft mandrake single network firewall7.2
- openbsd openssh2.0 and later · before 3.1
- openpkg openpkg1.0
- redhat linux7.0
- redhat linux7.1
- redhat linux7.2
- suse suse linux6.4
Same product
immunix: all recordsOther highest-scoring records for the same primary product.
- CVE-2002-1565Buffer overflow in url_filename function for wget 1.8.1 allows attackers to cause a denial of service (segmentation fault) and possibly…31Monitor
- CVE-2000-1208Format string vulnerability in startprinting() function of printjob.c in BSD-based lpr lpd package may allow local users to gain privileges…28Monitor
- CVE-2000-1134Multiple shell programs on various Unix systems, including (1) tcsh, (2) csh, (3) sh, and (4) bash, follow symlinks when processing <<…28Monitor
Published before and after this one in the same product
- ← EarlierCVE-2001-0641Sep 20, 2001 · Buffer overflow in man program in various distributions of Linux allows local user to execute arbitrary code as group man via a long -S…18Monitor
- ← EarlierCVE-2001-0736Oct 18, 2001 · Vulnerability in (1) pine before 4.33 and (2) the pico editor, included with pine, allows local users local users to overwrite arbitrary…8Monitor
- ← EarlierCVE-2001-0738Oct 18, 2001 · LogLine function in klogd in sysklogd 1.3 in various Linux distributions allows an attacker to cause a denial of service (hang) by causing…21Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- 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.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2002-03-07 |
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.
- First PoC-8 d
- Published
- TodayNov 14, 2026+9010 d
Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-193 · Off-by-one ErrorCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log (0)
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Show all references (19 more)Show less
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-004.txt.asc
- ftp://stage.caldera.com/pub/security/openserver/CSSA-2002-SCO.10/CSSA-2002-SCO.10.txt
- ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.11/CSSA-2002-SCO.11.txt
- archives.neohapsis.com/archives/bugtraq/2002-03/0108.html
- archives.neohapsis.com/archives/vulnwatch/2002-q1/0060.html
- distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000467
- marc.info/?l=bugtraq&m=101552065005254&w=2
- marc.info/?l=bugtraq&m=101553908201861&w=2
- marc.info/?l=bugtraq&m=101561384821761&w=2
- marc.info/?l=bugtraq&m=101586991827622&w=2
- online.securityfocus.com/advisories/3960
- online.securityfocus.com/archive/1/264657
- www.calderasystems.com/support/security/advisories/CSSA-2002-012.0.txt
- www.debian.org/security/2002/dsa-119
- www.iss.net/security_center/static/8383.php
- www.linux-mandrake.com/en/security/2002/MDKSA-2002-019.php
- www.linuxsecurity.com/advisories/other_advisory-1937.html
- www.novell.com/linux/security/advisories/2002_009_openssh_txt.html
- www.openbsd.org/advisories/ssh_channelalloc.txt
Vendor advisories and official records. Exploit/PoC links are deliberately left out.