CVE-2026-36618

MEDIUMPre-NVD 4.34.3—Trending — 3 sources updated this week

4.3

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 responds to version.bind CHAOS TXT queries, disclosing the DNS resolver software version (unbound 1.22.0), aiding targeted attacks against known vulnerabilities.

CVSS v3: 4.3
EG Score: 4.3(high)
EPSS: 5.4%
KEV: Not listed

Published

June 3, 2026

Last Modified

June 4, 2026

Advisory Details (1)

Auto-updated Jun 17, 2026

No patch confirmed yet.

generic

MERCUSYS-AC12G/advisories/CVE-2026-36618.md at master · Tymbark7372/MERCUSYS-AC12G · GitHub

https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36618.md

Vendor Advisories for CVE-2026-36618(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-2876-5r6w-63mx
GitHub Security AdvisoriesMedium
Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 responds to version.bind CHAOS TXT...

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Data Freshness Timeline

(refreshed 19× in last 7d / 59× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-22 14:25 UTCEPSS rescore
2026-06-22 14:25 UTCEPSS rescore
2026-06-21 14:56 UTCEPSS rescore
2026-06-21 14:56 UTCEPSS rescore
2026-06-21 01:59 UTCEPSS rescore
2026-06-19 23:55 UTCEG score recompute
2026-06-19 23:55 UTCGHSA enrichment
2026-06-19 19:25 UTCEPSS rescore
2026-06-19 19:25 UTCEPSS rescore
2026-06-18 17:52 UTCEPSS rescore
2026-06-18 17:52 UTCEPSS rescore
2026-06-18 16:38 UTCEG score recompute
2026-06-18 16:38 UTCGHSA enrichment
2026-06-17 17:53 UTCEPSS rescore
2026-06-17 14:19 UTCEG score recompute
2026-06-17 14:19 UTCGHSA enrichment
2026-06-16 17:52 UTCEPSS rescore
2026-06-16 14:25 UTCEG score recompute
2026-06-16 14:25 UTCGHSA enrichment
2026-06-15 17:49 UTCEPSS rescore
2026-06-15 13:35 UTCEG score recompute
2026-06-15 13:35 UTCGHSA enrichment
2026-06-14 23:18 UTCEPSS rescore
2026-06-14 13:42 UTCEG score recompute
2026-06-14 13:42 UTCGHSA enrichment

Show 34 more

2026-06-13 23:00 UTCEPSS rescore
2026-06-13 13:49 UTCEG score recompute
2026-06-13 13:49 UTCGHSA enrichment
2026-06-12 23:12 UTCEPSS rescore
2026-06-12 23:12 UTCEPSS rescore
2026-06-12 13:32 UTCEG score recompute
2026-06-12 13:32 UTCGHSA enrichment
2026-06-11 14:00 UTCEPSS rescore
2026-06-11 13:40 UTCEG score recompute
2026-06-11 13:40 UTCGHSA enrichment
2026-06-10 22:18 UTCEPSS rescore
2026-06-10 13:48 UTCEG score recompute
2026-06-10 13:48 UTCGHSA enrichment
2026-06-10 13:22 UTCEPSS rescore
2026-06-09 13:56 UTCEG score recompute
2026-06-09 13:56 UTCGHSA enrichment
2026-06-08 14:17 UTCEPSS rescore
2026-06-08 14:17 UTCEPSS rescore
2026-06-08 14:04 UTCEG score recompute
2026-06-08 14:04 UTCGHSA enrichment
2026-06-07 15:25 UTCEPSS rescore
2026-06-07 15:25 UTCEPSS rescore
2026-06-07 15:25 UTCEPSS rescore
2026-06-07 14:13 UTCEG score recompute
2026-06-07 14:13 UTCGHSA enrichment
2026-06-06 14:20 UTCEG score recompute▲ 4.30
2026-06-06 14:20 UTCGHSA enrichment
2026-06-06 13:47 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-05 22:47 UTCEPSS rescore
2026-06-05 22:47 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-03 17:37 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-36618?

CVE-2026-36618 is a medium vulnerability published on June 3, 2026. Mercusys AC12G (EU) V1 with firmware AC12G(EU)V1200909 responds to version.bind CHAOS TXT queries, disclosing the DNS resolver software version (unbound 1.22.0), aiding targeted attacks against known vulnerabilities.

When was CVE-2026-36618 disclosed?

CVE-2026-36618 was first published in the National Vulnerability Database on June 3, 2026, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-36618 actively exploited?

CVE-2026-36618 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-36618?

CVE-2026-36618 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).

How do I remediate CVE-2026-36618?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-36618, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-36618

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CVE-2026-36618

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

MERCUSYS-AC12G/advisories/CVE-2026-36618.md at master · Tymbark7372/MERCUSYS-AC12G · GitHub

📣 Vendor Advisories for CVE-2026-36618(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)