What is CVE-2022-45315?

CVE-2022-45315 is a medium-severity vulnerability in Microtik Routeros, classified under Out-of-bounds Read. CVSS score: 6.4/10. Published 2022-12-05.

How severe is CVE-2022-45315?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Is CVE-2022-45315 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Out-of-bounds Read in Microtik Routeros

CVE-2022-45315

Mikrotik RouterOs before stable v7.6 was discovered to contain an out-of-bounds read in the snmp process. This vulnerability allows authenticated attackers to execute arbitrary code via a crafted packet.

Vulnerability class: Buffer Overflow

Published 2022-12-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.001

Affected products

Microtik Routeros — versions 0
Mikrotik Routeros

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

Public proof-of-concept exploits

References

github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2022-45315… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-45315?: CVE-2022-45315 is a medium-severity vulnerability in Microtik Routeros, classified under Out-of-bounds Read. CVSS score: 6.4/10. Published 2022-12-05.
How severe is CVE-2022-45315?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2022-45315 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.