CVE-2001-0740
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier,...
CVE-2001-0740 is a medium vulnerability (CVSS 5.0) in 3com 3c840-us, published October 18, 2001. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 4.05%, the 90th percentile. No source names a fixed version.
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.
Exploit likelihood
What each source reports
NVD Score used
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.
- Record
CVE-2001-0740- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.
- Record
CVE-2001-0740- Updated
- 2026-11-02
EUVDEUVD-2001-0725 No score
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.
- Record
EUVD-2001-0725- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4fm7-gv4j-hx3r No score
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier,...
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.
- Record
GHSA-4fm7-gv4j-hx3r- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | 3Com OfficeConnect DSL Router 812 1.1.7/840 1.1.7 - HTTP Port Router Denial of Service | 2001-09-21 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, Exploit-DB, GitHub Advisories, NVD |