Public proof of conceptFix available

CVE-2023-3486

Q: Is CVE-2023-3486 actively exploited?

A proof-of-concept exploit exists for CVE-2023-3486, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2023-3486?

CVE-2023-3486 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

A public proof of concept exists; no exploitation attested.

Published2023-07-25
Fixed in22.1.3
WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An authentication bypass exists in PaperCut NG versions 22.0.12 and prior that could allow a remote, unauthenticated attacker to upload arbitrary files to the PaperCut NG host’s file storage. This could exhaust system resources and prevent the service from operating as expected.

Timeline

dates in UTC

2023-07-2513:15CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-3486?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-3486?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Papercut papercut mf

Branch	Affected	Fixed in	Source
22.1	< 22.1.3	22.1.3	NVD

Papercut papercut ng

Branch	Affected	Fixed in	Source
22.1	< 22.1.3	22.1.3	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Papercut papercut mf to 22.1.3

Advisories and patches

www.papercut.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2024-10-23
OpenCVESSVC decisionpoc—
CNACVSS 3.18.2read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-434read 2026-10-23
NVDweakness (CWE)CWE-434read 2026-10-23
FIRST EPSSEPSS score79.2 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2023-07-25
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-3486?

Is CVE-2023-3486 actively exploited?

A proof-of-concept exploit exists for CVE-2023-3486, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-3486?

CVE-2023-3486 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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