What is CVE-2018-10253?

CVE-2018-10253 is a high-severity vulnerability in Paessler Prtg Network Monitor, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-04-21.

How severe is CVE-2018-10253?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-10253 known to be exploited?

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

Buffer overflow in Paessler Prtg Network Monitor

CVE-2018-10253

Paessler PRTG Network Monitor before 18.1.39.1648 mishandles stack memory during unspecified API calls.

Vulnerability class: Buffer Overflow

Published 2018-04-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.074 (94.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.074 · newest: 0.074 · change: 0.000

Affected products

Paessler Prtg Network Monitor

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

www.exploit-db.com/exploits/44500/ (VDB Entry, Third Party Advisory, exploit)
www.paessler.com/prtg/history/preview (Vendor Advisory)

Frequently asked questions

What is CVE-2018-10253?: CVE-2018-10253 is a high-severity vulnerability in Paessler Prtg Network Monitor, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-04-21.
How severe is CVE-2018-10253?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-10253 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.