What is CVE-2002-1796?

CVE-2002-1796 is a high-severity vulnerability in HP Chaivm Ezloader, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.8/10. Published 2002-12-31.

How severe is CVE-2002-1796?

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

Vulnerability in HP Chaivm Ezloader

CVE-2002-1796

ChaiVM EZloader for HP color LaserJet 4500 and 4550 and HP LaserJet 4100 and 8150 does not properly verify JAR signatures for new services, which allows local users to load unauthorized Chai services.

Published 2002-12-31 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

www.phenoelit.de/stuff/HP_Chai.txt (Broken Link, Vendor Advisory)
www.securityfocus.com/bid/5334 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
online.securityfocus.com/advisories/4317 (Broken Link, Vendor Advisory, vendor-advisory, Patch, VDB Entry, Third Party Advisory)
www.iss.net/security_center/static/9695.php (vdb-entry, Broken Link)
www.securityfocus.com/archive/1/284648 (mailing-list, VDB Entry, Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2002-1796?: CVE-2002-1796 is a high-severity vulnerability in HP Chaivm Ezloader, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.8/10. Published 2002-12-31.
How severe is CVE-2002-1796?: High severity. CVSS v3 base score is 7.8 out of 10.