CVE-2019-3929

The Crestron AM-100 firmware 1.6.0.2, Crestron AM-101 firmware 2.7.0.1, Barco wePresent WiPG-1000P firmware 2.3.0.10, Barco wePresent WiPG-1600W before firmware 2.4.1.19, Extron ShareLink 200/250 firmware 2.0.3.4, Teq AV IT WIPS710 firmware 1.1.0.7, SHARP PN-L703WA firmware 1.4.2.3, Optoma WPS-Pro firmware 1.0.0.5, Blackbox HD WPS firmware 1.0.0.5, InFocus LiteShow3 firmware 1.0.16, and InFocus LiteShow4 2.0.0.7 are vulnerable to command injection via the file_transfer.cgi HTTP endpoint. A remote, unauthenticated attacker can use this vulnerability to execute operating system commands as root.

CVSS: 9.8Criticalscored by CISA
Exploited in the wild: Yes, in CISA KEV since 15 Apr 2022CISA deadline for US federal agencies: 6 May 2022public exploit code
EPSS: 99.0%chance of exploitation in the next 30 daystop 0.1% of scored CVEsFIRST score of 11 Nov 2026
Fix: Not stated by the vendorno fixed release in the CVE record
Published: 30 Apr 2019analysed here 12 Nov 2026

Do first. Apply updates per vendor instructions. (CISA's required action for this KEV entry)

Summary

Triage

Attack surface: Server and client
Exploitable: At runtime
Attack vector: network
Weaknesses: CWE-79 Cross-Site Scripting (XSS)
CWE-78 OS Command Injection
Can a WAF block it?: Yes. See why

The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.

Affected products

Product	Affected versions	Vendor says fixed in
Crestron Crestron AirMedia, Barco WePresent, Extron ShareLink, Teq AV IT WIPS710, SHARP PN-L703WA, Optoma WPS-Pro, Blackbox HD WPS, InFocus LiteShow3, and InFocus LiteShow4.	Crestron AM-100 firmware 1.6.0.2Crestron AM-101 firmware 2.7.0.1Barco wePresent WiPG-1000P firmware 2.3.0.10Barco wePresent WiPG-1600W before firmware 2.4.1.19Extron ShareLink 200/250 firmware 2.0.3.4Teq AV IT WIPS710 firmware 1.1.0.7SHARP PN-L703WA firmware 1.4.2.3Optoma WPS-Pro firmware 1.0.0.5Blackbox HD WPS firmware 1.0.0.5InFocus LiteShow3 firmware 1.0.16and InFocus LiteShow4 2.0.0.7Vendor says fixed in: not stated	Not stated by the vendor

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

Products named in our analysis

crestron:am-100_firmware
crestron:am-101_firmware
barco:wepresent_wipg-1000p_firmware
barco:wepresent_wipg-1600w_firmware
extron:sharelink_200_firmware
extron:sharelink_250_firmware
teqavit:wips710_firmware
sharp:pn-l703wa_firmware
optoma:wps-pro_firmware
blackbox:hd_wireless_presentation_system_firmware
infocus:liteshow3_firmware
infocus:liteshow4_firmware

Fix and mitigation

WAF and other mitigations

Can a WAF block it? Yes. Cross-site scripting sends script tags or event handlers in the request, which WAF signatures match well.

Also consider: CSP · output encoding · shlex/execve-style APIs

Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.

Remediation steps (AI-written)

Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.

Exploitation evidence

CISA KEV catalog: Listed since 15 Apr 2022.
CISA due date: 6 May 2022, the remediation deadline for US federal agencies
CISA required action: Apply updates per vendor instructions.
Public exploit code: Yes: 2 on Exploit-DB · 1 Metasploit module · 1 GitHub proof of concept · 1 Nuclei template
CISA SSVC: exploitation active, automatable yes, technical impact totalAssessed by CISA 6 Feb 2025 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.

Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.

Timeline

30 Apr 2019Published
3 May 2019First public exploit or proof of concept2 days later
15 Apr 2022Added to CISA KEV (exploited in the wild)1,078 days (about 3 years) later
6 May 2022CISA remediation due date (US federal agencies)21 days later
6 Feb 2025CISA SSVC assessment: exploitation active1,008 days (about 3 years) later
21 Oct 2025CVE record last updated257 days (about 9 months) later
12 Nov 2026Analysed by vulneraibility.com387 days (about 1 year) later

CVSS vector

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

Metric	Value	What it means
Attack vector	NetworkReachable over the internet or any routable network.	Reachable over the internet or any routable network.
Attack complexity	LowRepeatable attack, no special conditions.	Repeatable attack, no special conditions.
Privileges required	NoneThe attacker needs no prior access.	The attacker needs no prior access.
User interaction	NoneNo victim action needed.	No victim action needed.
Scope	UnchangedImpact stays within the vulnerable component.	Impact stays within the vulnerable component.
Confidentiality	HighTotal data disclosure possible.	Total data disclosure possible.
Integrity	HighComplete modification possible.	Complete modification possible.
Availability	HighFull outage possible.	Full outage possible.

Common questions

Is CVE-2019-3929 being exploited?

Yes. CVE-2019-3929 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.

How severe is CVE-2019-3929?

CVE-2019-3929 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2019-3929?

Not known from our data. No patch reference has been recorded for CVE-2019-3929, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2019-3929 affect?

CVE-2019-3929 affects crestron:am-100_firmware, crestron:am-101_firmware, barco:wepresent_wipg-1000p_firmware, barco:wepresent_wipg-1600w_firmware, and 8 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

References

NVD CVE.org CVE Details Source

5 references in the CVE record, grouped by the tags the record gives them.

Exploits (1)

exploit-db.com /exploits/46786/

Where the data on this page comes from

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
CISA KEV catalog: exploitation, date added, due date
CISA Vulnrichment (ADP): SSVC decision points
FIRST EPSS: exploit probability and percentile
Exploit-DB: published exploits
Metasploit Framework: exploit and scanner modules
Nuclei templates: detection templates
PoC-in-GitHub: GitHub repositories that claim a proof of concept

Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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