Vendor
Mercusys vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 20 vulnerabilities in Mercusys: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-78862, was published on 5 October 2026. Nothing in the last four weeks, down from 3 vulnerabilities in the four before. 3 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 0
- Exploited in the wild
- 0
About Mercusys
Mercusys is a provider of networking devices including routers, range extenders, adapters, and switches.
Mercusys technologies
Latest Mercusys vulnerabilities
- CVE-2026-78862: Mercusys AC12 V2 arbitrary code execution via UART interfaceinfo
- CVE-2026-78861: Mercusys AC12 V2 hardcoded RSA private key code executioninfo
- CVE-2026-78860: Mercusys AC12 V2 missing firmware encryption and secure bootinfo
- CVE-2026-12495: Mercusys MB115-4G stack buffer overflow in http_gdpr_decryptinfoCVSS 9.2
- CVE-2026-31267: Mercusys MW302R stack buffer overflow in administrative web interfaceinfoCVSS 4.9
- CVE-2026-36618: Mercusys AC12G information disclosure in DNS resolverinfoCVSS 3.7
- CVE-2026-36616: Mercusys AC12G hardcoded WiFi credentials in firmwareinfoCVSS 6.1
- CVE-2026-36615: Mercusys AC12G information disclosure in /agileconfigreset endpointinfoCVSS 4.3
- CVE-2026-36613: Mercusys AC12G Information Disclosure in HTTP ServerinfoCVSS 5.3
- CVE-2026-36612: Mercusys AC12G weak WPS lockout and predictable PINinfoCVSS 6.5
- CVE-2026-36611: Mercusys AC12G uninitialized buffer disclosure in UPnPinfoCVSS 5.3
- CVE-2026-36610: Mercusys AC12G cleartext transmission of DDNS credentialsinfoCVSS 5.9
- CVE-2026-36609: Mercusys AC12G V1 password recovery via static nonce and weak encodinginfoCVSS 7.5
- CVE-2026-36608: Mercusys AC12G UPnP port forwarding to local admin interfaceinfoCVSS 9.6
- CVE-2026-36607: Mercusys AC12G brute-force protection bypass in TDDP endpointinfoCVSS 9.8
- CVE-2026-36606: Mercusys AC12G hardcoded DES key in configuration backupinfoCVSS 7.4
- CVE-2026-36605: Mercusys AC12G HTTP denial of service in web management interfaceinfoCVSS 7.5
- CVE-2026-36604: Mercusys AC12G DNS rebinding via missing Host header validationinfoCVSS 6.5
- CVE-2026-36603: Mercusys AC12G missing authentication for UPnP IGD actionsinfoCVSS 8.1
- CVE-2026-36602: Mercusys AC12G kernel memory disclosure in UPnP GetStatusInfoinfoCVSS 5.3
Most severe Mercusys vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-36607: Mercusys AC12G brute-force protection bypass in TDDP endpointinfoCVSS 9.8
- CVE-2026-36608: Mercusys AC12G UPnP port forwarding to local admin interfaceinfoCVSS 9.6
- CVE-2026-12495: Mercusys MB115-4G stack buffer overflow in http_gdpr_decryptinfoCVSS 9.2
- CVE-2026-36603: Mercusys AC12G missing authentication for UPnP IGD actionsinfoCVSS 8.1
- CVE-2026-36609: Mercusys AC12G V1 password recovery via static nonce and weak encodinginfoCVSS 7.5
- CVE-2026-36605: Mercusys AC12G HTTP denial of service in web management interfaceinfoCVSS 7.5
- CVE-2026-36606: Mercusys AC12G hardcoded DES key in configuration backupinfoCVSS 7.4
- CVE-2026-36612: Mercusys AC12G weak WPS lockout and predictable PINinfoCVSS 6.5
- CVE-2026-36604: Mercusys AC12G DNS rebinding via missing Host header validationinfoCVSS 6.5
- CVE-2026-36616: Mercusys AC12G hardcoded WiFi credentials in firmwareinfoCVSS 6.1
Vulnerabilities per week
Nothing in the last four weeks, down from 3 vulnerabilities in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 3 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Mercusys vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/mercusys)<a href="https://junglewise.ai/threats/vendors/mercusys"><img src="https://junglewise.ai/threats/vendors/mercusys/badge.svg" alt="Mercusys vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/mercusys.json, and this page as text at https://junglewise.ai/threats/vendors/mercusys.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Mercusys vulnerabilities", https://junglewise.ai/threats/vendors/mercusys, 9 November 2026.