Public proof of concept

CVE-2016-4845

A public proof of concept exists; no exploitation attested.

Published2016-09-24
WeaknessCWE-352

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

Cross-site request forgery (CSRF) vulnerability on I-O DATA DEVICE HVL-A2.0, HVL-A3.0, HVL-A4.0, HVL-AT1.0S, HVL-AT2.0, HVL-AT3.0, HVL-AT4.0, HVL-AT2.0A, HVL-AT3.0A, and HVL-AT4.0A devices with firmware before 2.04 allows remote attackers to hijack the authentication of arbitrary users for requests that delete content.

Timeline

dates in UTC

2016-09-2410:59CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 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-2016-4845?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-4845?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Iodata hvl-a2.0 firmwareversion to verify

Branch	Affected	Fixed in	Source
2.3	= 2.03	no fix published	NVD

Iodata hvl-a3.0 firmwareversion to verify

Branch	Affected	Fixed in	Source
2.3	= 2.03	no fix published	NVD

Iodata hvl-a4.0 firmwareversion to verify

Branch	Affected	Fixed in	Source
2.3	= 2.03	no fix published	NVD

7 more products in the sources.

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

Fix

Advisories and patches

www.iodata.jpVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedkaito834/cve-2016-4845_csrf

Sources

NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-352read 2026-10-23
FIRST EPSSEPSS score2.4 %2026-10-22
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2016-09-24
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-4845?

Is CVE-2016-4845 actively exploited?

Active exploitation of CVE-2016-4845 has not been confirmed. Its EPSS score was 2.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-4845?

CVE-2016-4845 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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