How severe is CVE-2018-0644?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Orca Management Organization Co., Ltd. Ubuntu14.04 Orca(online Receipt Computer Advantage)4.8.0(panda-Client2) 1:1.4.9+p41-U4jma1 And Earlier, Advantage)5.0.0(panda-Client2) 1:2.0.0+p48-U4jma1 Ubuntu16.04 1:2.0.0+p48-U5jma1 Earlier

CVE-2018-0644

Buffer overflow in Ubuntu14.04 ORCA (Online Receipt Computer Advantage) 4.8.0 (panda-client2) 1:1.4.9+p41-u4jma1 and earlier, Ubuntu14.04 ORCA (Online Receipt Computer Advantage) 5.0.0 (panda-client2) 1:2.0.0+p48-u4jma1 and earlier, and Ubuntu16.04 ORCA (Online Receipt Computer Advantage) 5.0.0 (panda-client2) 1:2.0.0+p48-u5jma1 and earlier allows authenticated attackers to cause denial-of-service (DoS) condition via unspecified vectors.

Vulnerability class: Buffer Overflow

Published 2018-09-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (61.9th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Orca Management Organization Co., Ltd. Ubuntu14.04 Orca(online Receipt Computer Advantage)4.8.0(panda-Client2) 1:1.4.9+p41-U4jma1 And Earlier, Advantage)5.0.0(panda-Client2) 1:2.0.0+p48-U4jma1 Ubuntu16.04 1:2.0.0+p48-U5jma1 Earlier — versions unspecified
Canonical Ubuntu Linux — versions 14.04, 16.04

Weakness classification (CWE)

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

References

jvn.jp/en/jp/JVN37376131/index.html (Third Party Advisory, third-party-advisory)
www.orca.med.or.jp/news/vulnerability_2018-07-18-1.html (Vendor Advisory)

Frequently asked questions

What is CVE-2018-0644?: CVE-2018-0644 is a medium-severity vulnerability in Orca Management Organization Co., Ltd. Ubuntu14.04 Orca(online Receipt Computer Advantage)4.8.0(panda-Client2) 1:1.4.9+p41-U4jma1 And Earlier, Advantage)5.0.0(panda-Client2) 1:2.0.0+p48-U4jma1 Ubuntu16.04 1:2.0.0+p48-U5jma1 Earlier, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2018-09-07.
How severe is CVE-2018-0644?: Medium severity. CVSS v3 base score is 6.5 out of 10.