CVE-2002-1721
Off-by-one error in alterMIME 0.1.10 and 0.1.11 allows remote attackers to cause a denial of service (crash) via an x-header that causes snprintf overwrite the FFGET_FILE variable with a (null) byte.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Off-by-one error in alterMIME 0.1.10 and 0.1.11 allows remote attackers to cause a denial of service (crash) via an x-header that causes snprintf overwrite the FFGET_FILE variable with a (null) byte.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.26% probability · 83th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-193
- Affected
- pldaniels/altermime
- Source
- cve@mitre.org
EPSS 2.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.pldaniels.com/altermime/CHANGELOGRelease Notes
- http://www.securityfocus.com/bid/4650Broken Link, Patch, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/8992Third Party Advisory, VDB Entry
- http://www.pldaniels.com/altermime/CHANGELOGRelease Notes
- http://www.securityfocus.com/bid/4650Broken Link, Patch, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/8992Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.