CVE-2022-45315Public exploit

Authenticated code execution via unchecked SNMP key

Published Dec 5, 2022 · Updated Apr 9, 2026

Out-of-bounds read in MikroTik RouterOS before 7.6 allows remote authenticated users to execute code through a crafted SNMP packet. The snmp process fails to validate a u32_id value before Item::regenerateKeys uses it as an array offset, making a later function pointer attacker-controlled. An account authenticated to the device and access to the enabled SNMP service are required; successful exploitation grants code execution, while the published proof of concept crashes the process.

CVSS severity6.4
Medium
EPSS probability1.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in MikroTik RouterOS before 7.6 allows remote authenticated users to execute code through a crafted SNMP packet. The snmp process fails to validate a u32_id value before Item::regenerateKeys uses it as an array offset, making a later function pointer attacker-controlled. An account authenticated to the device and access to the enabled SNMP service are required; successful exploitation grants code execution, while the published proof of concept crashes the process.

The record

CVE
CVE-2022-45315
Published
Dec 5, 2022
Updated
Apr 9, 2026
Vendor
MikroTik
Product
RouterOS
Classifications
CWE-125, T1210
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Dec 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.6 2022-10-31

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

MikroTik · RouterOSversion=0 <7.6 2022-10-31

Published CVSS scores

6.4NVDCVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1210Exploitation of Remote Services

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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