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ExploitedNot in CISA KEV yetFix available

CVE-2025-41646

Exploitation confirmed. First attested on 2025-07-30 by GCVE · kevintel, GCVE · shadowserver.

  • Published2025-06-06
  • Fixed in2.4.6
  • WeaknessCWE-704

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 unauthorized remote attacker can bypass the authentication of the affected software package by misusing an incorrect type conversion. This leads to full compromise of the device

Timeline

dates in UTC
  1. 2025-06-0615:15CVE publishedNVD
  2. 2025-07-30Listed as exploited by GCVEGCVE
  3. 2025-07-30Exploitation first reportedGCVE

Versions per branch

NVD
Kunbus revpi status
BranchAffectedFixed in
2.4< 2.4.62.4.6

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

Products declared by the CNA1 product

As CERTVDE, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Kunbus Revolution Pi webstatusother versions: not affected
    Affected
    • ≥ 0.0.0, ≤ 2.4.5no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-06-06

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-25-191-09 CISA6 known affected

    KUNBUS RevPi Webstatus

    KUNBUS Revolution Pi Webstatus: <=2.4.5 · KUNBUS Revolution Pi OS Bullseye: 04/2024 · KUNBUS Revolution Pi OS Bullseye: 09/2023 · +3 more

Full record on NVD

Fix

  1. Update Kunbus revpi status to 2.4.6
  2. Vendor fix CISA ICSA-25-191-09 · 1 productFor Revolution Pi Webstatus Version 2.4.5 and prior: Install the updated package Version 2.4.6 either using apt-get update && apt-get upgrade or download it manually and install via dpkg.
  3. Mitigation from the vendor CISA ICSA-25-191-09 · 6 productsKUNBUS has identified the following specific workarounds and mitigations users can apply to reduce risk:
  4. Mitigation from the vendor CISA ICSA-25-191-09 · 6 productsFor more information, see the associated KUNBUS PSIRT security advisory, Kunbus-2025-0000003 URL generated by system.

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2025-06-06
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-q5w3-ffhf-j4gq

Frequently asked questions

What is CVE-2025-41646?

An unauthorized remote attacker can bypass the authentication of the affected software package by misusing an incorrect type conversion. This leads to full compromise of the device

Is CVE-2025-41646 actively exploited?

Active exploitation of CVE-2025-41646 has not been confirmed. Its EPSS score was 50.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-41646?

CVE-2025-41646 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record