Exploitation evidence
Known exploited · CISA KEV listed
Added 2022-03-25. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-04-15. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
QNAP Systems Inc. / Helpdesk
Default status: Not specified
- affected: unspecified to < 3.0.3 (custom)
Fixes and workarounds
QNAP has already fixed these issues in Helpdesk 3.0.3 and later versions.
Sources and related reporting
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.02006,
"percentile": 0.8111
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.02006,
"percentile": 0.8099
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.02006,
"percentile": 0.80966
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.02006,
"percentile": 0.80958
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.02006,
"percentile": 0.80942
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.02006,
"percentile": 0.80909
}06 Nov 2026, 06:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
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}
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"title": "CVE Program Container"
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"metrics": [
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"timestamp": "2025-02-06T20:39:53.308780Z",
"version": "2.0.3"
},
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},
{
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"title": "CISA ADP Vulnrichment"
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],
"cna": {
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{
"product": "Helpdesk",
"vendor": "QNAP Systems Inc.",
"versions": [
{
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"credits": [
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"datePublic": "2020-10-07T00:00:00.000Z",
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}
],
"metrics": [
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],
"solutions": [
{
"lang": "en",
"value": "QNAP has already fixed these issues in Helpdesk 3.0.3 and later versions."
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],
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"discovery": "EXTERNAL"
},
"title": "improper access control vulnerability in Helpdesk",
"x_generator": {
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"TITLE": "improper access control vulnerability in Helpdesk"
},
"affects": {
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{
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],
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},
"cveMetadata": {
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"datePublished": "2021-02-03T15:51:38.031Z",
"dateReserved": "2019-12-09T00:00:00.000Z",
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"state": "PUBLISHED"
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}05 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.02006,
"percentile": 0.80894
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.02006,
"percentile": 0.80879
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.02006,
"percentile": 0.80846
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.02006,
"percentile": 0.80823
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2020-2506",
"cwes": [
"CWE-284"
],
"dateAdded": "2022-03-25",
"dueDate": "2022-04-15",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2020-2506",
"product": "Helpdesk",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "QNAP Helpdesk contains an improper access control vulnerability which could allow an attacker to gain privileges or to read sensitive information.",
"vendorProject": "QNAP Systems",
"vulnerabilityName": "QNAP Helpdesk Improper Access Control Vulnerability"
}