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CVE-2001-1496
Off-by-one buffer overflow in Basic Authentication in Acme Labs thttpd 1.95 through 2.20 allows remote attackers to cause a denial of…
Critical9.8EPSS 5.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Off-by-one buffer overflow in Basic Authentication in Acme Labs thttpd 1.95 through 2.20 allows remote attackers to cause a denial of service and possibly execute arbitrary code.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 5.1% · top 7.6% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (4)
- 20011120 Off-by-one vulnerability in thttpd!!! (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20011123 Re: Off-by-one vulnerability in thttpd!!! (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 3562 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- thttpd-basic-authentication-bo(7595) (opens in a new tab)vdb-entryx_refsource_XFx_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://trackcve.app/cve/CVE-2001-1496)Record last updated .