CVE-2020-13432
rejetto HFS (aka HTTP File Server) v2.3m Build #300, when virtual files or folders are used, allows remote attackers to trigger an invalid-pointer write access violation via concurrent HTTP requests with a long URI or long HTTP headers.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 30.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
rejetto HFS (aka HTTP File Server) v2.3m Build #300, when virtual files or folders are used, allows remote attackers to trigger an invalid-pointer write access violation via concurrent HTTP requests with a long URI or long HTTP headers.
- 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
- 30.86% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- rejetto/http file server
- Source
- cve@mitre.org
EPSS 30.9% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://hyp3rlinx.altervista.org/advisories/HFS-HTTP-FILE-SERVER-v2.3-REMOTE-BUFFER-OVERFLOW-DoS.txtExploit, Third Party Advisory
- http://packetstormsecurity.com/files/157980/HFS-Http-File-Server-2.3m-Build-300-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Jun/13Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/12
- https://github.com/rejetto/hfs2/commit/b8ebfc4e22948e1a61506cd66e397b61ea5ea5dePatch, Third Party Advisory
- https://packetstormsecurity.com/files/157980/HFS-Http-File-Server-2.3m-Build-300-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- https://www.rejetto.com/hfs/?f=wnRelease Notes, Vendor Advisory
- http://hyp3rlinx.altervista.org/advisories/HFS-HTTP-FILE-SERVER-v2.3-REMOTE-BUFFER-OVERFLOW-DoS.txtExploit, Third Party Advisory
- http://packetstormsecurity.com/files/157980/HFS-Http-File-Server-2.3m-Build-300-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Jun/13Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Apr/12
- https://github.com/rejetto/hfs2/commit/b8ebfc4e22948e1a61506cd66e397b61ea5ea5dePatch, Third Party Advisory
- https://packetstormsecurity.com/files/157980/HFS-Http-File-Server-2.3m-Build-300-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- https://www.rejetto.com/hfs/?f=wnRelease Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.