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CVE-2001-0740
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a…
Medium5.0EPSS 4.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Timeline
ID reserved
By mitre
- 5 months later
· 5 months later
Published
- 22 years later
· 22 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 4.1% · top 9.3% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 20010924 Regarding: 3Com OfficeConnect 812/840 Router DoS exploit code (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 3com-officeconnect-http-dos(6573) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20010515 3COM OfficeConnect DSL router vulneratibilities (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20010921 3Com OfficeConnect 812/840 Router DoS exploit code (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 2721 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2001-0740)Record last updated .