What is CVE-2018-6462?

CVE-2018-6462 is a high-severity vulnerability in Tracker-Software Pdf-Xchange Viewer, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-01-31.

How severe is CVE-2018-6462?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2018-6462 known to be exploited?

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

Buffer overflow in Tracker-Software Pdf-Xchange Viewer

CVE-2018-6462

Tracker PDF-XChange Viewer and Viewer AX SDK before 2.5.322.8 mishandle conversion from YCC to RGB colour spaces by calculating on the basis of 1 bpc instead of 8 bpc, which might allow remote attackers to execute arbitrary code via a crafted PDF document.

Vulnerability class: Buffer Overflow

Published 2018-01-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.025 (83.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

www.tracker-software.com/company/news_press_events/view/179 (Patch, Vendor Advisory)
herolab.usd.de/wp-content/uploads/sites/4/2018/07/usd20180019.txt

Frequently asked questions

What is CVE-2018-6462?: CVE-2018-6462 is a high-severity vulnerability in Tracker-Software Pdf-Xchange Viewer, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-01-31.
How severe is CVE-2018-6462?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-6462 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.