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Fencer Intel
critical 9.8

CVE-2018-6871 in the critical feed json

LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which us…

published 2018-02-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18617

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
22.8%
EPSS 22.8% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the COM.MICROSOFT.WEBSERVICE function.

Patch / fix

  • libreoffice libreoffice 5.4.5
  • libreoffice Debian 14, Debian 13, Debian 12 1:6.0.1-1

debian advisories DEBIAN-CVE-2018-6871

  • libreoffice Ubuntu 14.04 LTS 1:4.2.8-0ubuntu5.3
  • libreoffice Ubuntu 16.04 LTS 1:5.1.6~rc2-0ubuntu1~xenial3

ubuntu advisories UBUNTU-CVE-2018-6871

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libreoffice RHEL 7 1:5.0.6.2-15.el7_4
  • autocorr-af RHEL 7 1:5.0.6.2-15.el7_4
  • autocorr-bg RHEL 7 1:5.0.6.2-15.el7_4
  • autocorr-ca RHEL 7 1:5.0.6.2-15.el7_4
  • autocorr-cs RHEL 7 1:5.0.6.2-15.el7_4
  • autocorr-da RHEL 7 1:5.0.6.2-15.el7_4
  • autocorr-de RHEL 7 1:5.0.6.2-15.el7_4
  • autocorr-en RHEL 7 1:5.0.6.2-15.el7_4

red hat advisories RHSA-2018:0418RHSA-2018:0517

  • boost SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +2 more 1.54.0-26.3.1
  • libqxp SLED 12 SP3, SLE Workstation Extension 12 SP3, SLE Software Development Kit 12 SP3 0.0.1-1.3.1
  • libwps SLED 12 SP3, SLE Workstation Extension 12 SP3, SLE Software Development Kit 12 SP3 0.4.7-10.7.1
  • libmwaw SLED 12 SP3, SLE Workstation Extension 12 SP3, SLE Software Development Kit 12 SP3 0.3.13-7.9.1
  • libixion SLED 12 SP3, SLE Workstation Extension 12 SP3, SLE Software Development Kit 12 SP3 0.13.0-13.6.1
  • liborcus SLED 12 SP3, SLE Workstation Extension 12 SP3, SLE Software Development Kit 12 SP3 0.13.4-10.9.1
  • libepubgen SLED 12 SP3, SLE Workstation Extension 12 SP3, SLE Software Development Kit 12 SP3 0.1.0-6.6.1
  • libreoffice SLED 12 SP3, SLE Workstation Extension 12 SP3, SLE Software Development Kit 12 SP3 6.0.3.2-43.30.2

suse advisories SUSE-SU-2018:1076-1SUSE-SU-2018:0443-1SUSE-SU-2018:0428-1

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-2018-6871 updated cvss 4.7

libreoffice: Remote arbitrary file disclosure vulnerability via WEBSERVICE formula

  • Red Hat Enterprise Linux Client (v. 7) autocorr-af 5.0.6.2-15.el7_4, autocorr-bg 5.0.6.2-15.el7_4, autocorr-ca 5.0.6.2-15.el7_4, autocorr-cs 5.0.6.2-15.el7_4, autocorr-da 5.0.6.2-15.el7_4, autocorr-de 5.0.6.2-15.el7_4, +44 more Red Hat Enterprise Linux Client Optional (v. 7) libreoffice 5.0.6.2-15.el7_4, libreofficekit 5.0.6.2-15.el7_4, libreoffice-bsh 5.0.6.2-15.el7_4, libreoffice-sdk 5.0.6.2-15.el7_4, libreoffice-glade 5.0.6.2-15.el7_4, libreoffice-rhino 5.0.6.2-15.el7_4, +7 more
    fixed: vendor fix RHSA-2018:0418
  • Red Hat Enterprise Linux Desktop (v. 6) autocorr-af 4.3.7.2-2.el6_9.2, autocorr-bg 4.3.7.2-2.el6_9.2, autocorr-ca 4.3.7.2-2.el6_9.2, autocorr-cs 4.3.7.2-2.el6_9.2, autocorr-da 4.3.7.2-2.el6_9.2, autocorr-de 4.3.7.2-2.el6_9.2, +44 more Red Hat Enterprise Linux Desktop Optional (v. 6) autocorr-is 4.3.7.2-2.el6_9.2, libreoffice 4.3.7.2-2.el6_9.2, libreoffice-bsh 4.3.7.2-2.el6_9.2, libreoffice-sdk 4.3.7.2-2.el6_9.2, libreoffice-glade 4.3.7.2-2.el6_9.2, libreoffice-rhino 4.3.7.2-2.el6_9.2, +5 more
    fixed: vendor fix RHSA-2018:0517
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) autocorr-af 5.0.6.2-15.el7_4, autocorr-bg 5.0.6.2-15.el7_4, autocorr-ca 5.0.6.2-15.el7_4, autocorr-cs 5.0.6.2-15.el7_4, autocorr-da 5.0.6.2-15.el7_4, autocorr-de 5.0.6.2-15.el7_4, +55 more
    fixed: vendor fix RHSA-2018:0418
  • Red Hat Enterprise Linux Server Optional (v. 6) autocorr-af 4.3.7.2-2.el6_9.2, autocorr-bg 4.3.7.2-2.el6_9.2, autocorr-ca 4.3.7.2-2.el6_9.2, autocorr-cs 4.3.7.2-2.el6_9.2, autocorr-da 4.3.7.2-2.el6_9.2, autocorr-de 4.3.7.2-2.el6_9.2, +54 more
    fixed: vendor fix RHSA-2018:0517
  • Red Hat Enterprise Linux Server Optional (v. 7) autocorr-af 5.0.6.2-15.el7_4, autocorr-bg 5.0.6.2-15.el7_4, autocorr-ca 5.0.6.2-15.el7_4, autocorr-cs 5.0.6.2-15.el7_4, autocorr-da 5.0.6.2-15.el7_4, autocorr-de 5.0.6.2-15.el7_4, +55 more
    fixed: vendor fix RHSA-2018:0418
  • Red Hat Enterprise Linux Workstation (v. 6) autocorr-af 4.3.7.2-2.el6_9.2, autocorr-bg 4.3.7.2-2.el6_9.2, autocorr-ca 4.3.7.2-2.el6_9.2, autocorr-cs 4.3.7.2-2.el6_9.2, autocorr-da 4.3.7.2-2.el6_9.2, autocorr-de 4.3.7.2-2.el6_9.2, +44 more
    fixed: vendor fix RHSA-2018:0517
  • Red Hat Enterprise Linux Workstation (v. 7) autocorr-af 5.0.6.2-15.el7_4, autocorr-bg 5.0.6.2-15.el7_4, autocorr-ca 5.0.6.2-15.el7_4, autocorr-cs 5.0.6.2-15.el7_4, autocorr-da 5.0.6.2-15.el7_4, autocorr-de 5.0.6.2-15.el7_4, +44 more
    fixed: vendor fix RHSA-2018:0418
  • Red Hat Enterprise Linux Workstation Optional (v. 6) autocorr-is 4.3.7.2-2.el6_9.2, libreoffice 4.3.7.2-2.el6_9.2, libreoffice-bsh 4.3.7.2-2.el6_9.2, libreoffice-sdk 4.3.7.2-2.el6_9.2, libreoffice-glade 4.3.7.2-2.el6_9.2, libreoffice-rhino 4.3.7.2-2.el6_9.2, +5 more
    fixed: vendor fix RHSA-2018:0517
show 2 more
  • Red Hat Enterprise Linux Workstation Optional (v. 7) libreoffice 5.0.6.2-15.el7_4, libreofficekit 5.0.6.2-15.el7_4, libreoffice-bsh 5.0.6.2-15.el7_4, libreoffice-sdk 5.0.6.2-15.el7_4, libreoffice-glade 5.0.6.2-15.el7_4, libreoffice-rhino 5.0.6.2-15.el7_4, +7 more
    fixed: vendor fix RHSA-2018:0418
  • Red Hat Enterprise Linux 8 autocorr-af, autocorr-bg, autocorr-ca, autocorr-cs, autocorr-da, autocorr-de, +98 more
    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

Timeline

  1. Published
  2. First public exploit (EDB-44022)

Exploit prediction

22.80% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-44022 LibreOffice < 6.0.1 - '=WEBSERVICE' Remote Arbitrary File Disclosure remote, 2018-02-10
  • github.com https://github.com/jollheef/libreoffice-remote-arbitrary-file-disclosure referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

References

Sources

Fencer Intel 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.