CVE-2025-63459

HIGHNVD 7.57.5—Elevated

7.5

Totolink A7000R v9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the ssid5g parameter in the sub_421CF0 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 46.6%
KEV: Not listed

Published

October 31, 2025

Last Modified

November 5, 2025

References (2)

cve@mitrehttps://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/A7000/5/1.md
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/A7000/5/1.md

Weakness Classification(1)

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

CWE-121Stack-based Buffer Overflow

Data Freshness Timeline

(refreshed 16× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:47 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-02 20:13 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 19:56 UTCEG score recompute
2026-05-29 19:56 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-63459?

CVE-2025-63459 is a high vulnerability published on October 31, 2025. Totolink A7000R v9.1.0u.6115B20201022 was discovered to contain a stack overflow via the ssid5g parameter in the sub421CF0 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

When was CVE-2025-63459 disclosed?

CVE-2025-63459 was first published in the National Vulnerability Database on October 31, 2025, with the most recent update on November 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-63459 actively exploited?

CVE-2025-63459 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 46.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-63459?

CVE-2025-63459 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2025-63459?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-63459, 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

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CVE-2025-63459

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-63459?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)