Which products and versions are affected by CVE-2020-13432?

Affected: HTTP File Server (Rejetto) versions 2.3m. The full list is in the CVE brief.

Is CVE-2020-13432 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2020-13432 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2020-13432?

No public exploit code is known.

Is there a fix for CVE-2020-13432?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2020-13432 be patched?

Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

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WatchlistHigh

CVE-2020-13432HTTP File Server Buffer Overflow

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.

Published Jun 8, 2020 · Updated Jul 8, 2026

Key Facts

Patch in the next maintenance window

CVE-2020-13432 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting HTTP File Server (Rejetto).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 31% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Scores

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS (30-day exploit likelihood)

31%

Higher than 98.2% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

40/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

Description

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
HTTP File ServerRejetto	2.3m	n/a

Timeline

Publicly disclosed
Jun 8, 2020
Last updated
Jul 8, 2026

Weakness Type

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

References

2 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: HTTP File Server (Rejetto) versions 2.3m. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Is CVE-2020-13432 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.