CVE-2022-45313

HIGHNVD 8.89.8▲Elevated

8.8

Mikrotik RouterOs before stable v7.5 was discovered to contain an out-of-bounds read in the hotspot process. This vulnerability allows attackers to execute arbitrary code via a crafted nova message.

CVSS v3: 8.8
EG Score: 9.8(medium)
EPSS: 94.4%
KEV: Not listed

Published

December 5, 2022

Last Modified

April 24, 2025

References (2)

cve@mitrehttps://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2022-45313/README.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2022-45313/README.md

Weakness Classification(1)

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

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 12× in last 7d / 20× 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.

2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-45313?

CVE-2022-45313 is a high vulnerability published on December 5, 2022. Mikrotik RouterOs before stable v7.5 was discovered to contain an out-of-bounds read in the hotspot process. This vulnerability allows attackers to execute arbitrary code via a crafted nova message.

When was CVE-2022-45313 disclosed?

CVE-2022-45313 was first published in the National Vulnerability Database on December 5, 2022, with the most recent update on April 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-45313 actively exploited?

CVE-2022-45313 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-45313?

CVE-2022-45313 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

How do I remediate CVE-2022-45313?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-45313, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-45313

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Is Your Infrastructure Affected by CVE-2022-45313?

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Frequently asked(5)

What is CVE-2022-45313?

When was CVE-2022-45313 disclosed?

Is CVE-2022-45313 actively exploited?

What is the CVSS score of CVE-2022-45313?

CVE-2022-45313 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

How do I remediate CVE-2022-45313?

CVE-2022-45313

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-45313?

CVE-2022-45313

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-45313?

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References (2)

Frequently asked(5)

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Frequently asked(5)

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