What is CVE-2018-1056?

CVE-2018-1056 is a high-severity vulnerability in Advancemame Advancecomp, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2018-07-27.

How severe is CVE-2018-1056?

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

Is CVE-2018-1056 known to be exploited?

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

Buffer overflow in Advancemame Advancecomp

CVE-2018-1056

An out-of-bounds heap buffer read flaw was found in the way advancecomp before 2.1-2018/02 handled processing of ZIP files. An attacker could potentially use this flaw to crash the advzip utility by tricking it into processing crafted ZIP files.

Vulnerability class: Buffer Overflow

Published 2018-07-27 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.014 (71.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Advancemame Advancecomp
Amadvance Advancecomp: — versions 2.1-2018/02
Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Debian Linux — versions 7.0, 8.0, 9.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

lists.debian.org/debian-lts-announce/2019/03/msg00004.html (mailing-list, Mailing List, Third Party Advisory)
bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
bugs.debian.org/cgi-bin/bugreport.cgi (Exploit, Third Party Advisory, Issue Tracking)
usn.ubuntu.com/3570-1/ (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2018/02/msg00016.html (mailing-list, Mailing List, Third Party Advisory)
sourceforge.net/p/advancemame/bugs/259/ (Third Party Advisory, Issue Tracking)
lists.debian.org/debian-lts-announce/2021/12/msg00034.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-1056?: CVE-2018-1056 is a high-severity vulnerability in Advancemame Advancecomp, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2018-07-27.
How severe is CVE-2018-1056?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-1056 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.