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Fencer Vulns
high 7.8

CVE-2018-10115 json

Incorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote…

published 2018-05-02 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2194

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Incorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.

Patch / fix

  • p7zip-rar Debian 13, Debian 12 16.02-3

debian advisories DEBIAN-CVE-2018-10115

  • p7zip Alpine 3.17, Alpine 3.16, Alpine 3.15 +10 more 16.02-r3

alpine advisories ALPINE-CVE-2018-10115

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-10115 updated cvss 9.8

p7zip: unitialized memory due to incorrect logic of RAR decoder might lead to arbitrary code execution

  • Red Hat Enterprise Linux 8 p7zip
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSMA-21-187-01 updated cvss 7.5

Philips Vue PACS (Update B)

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

4.33% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • landave.io https://landave.io/2018/05/7-zip-from-uninitialized-memory-to-remote-code-execution/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-665 Improper Initialization
  • CWE-908 Use of Uninitialized Resource

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.