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Fencer Vulns
high 7.8

CVE-2018-11781 json

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

published 2018-09-17 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-3784

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Patch / fix

  • apache spamassassin 3.4.2
  • spamassassin Debian 14, Debian 13, Debian 12 3.4.2-1

debian advisories DEBIAN-CVE-2018-11781

  • spamassassin Ubuntu 14.04 LTS 3.4.2-0ubuntu0.14.04.1
  • spamassassin Ubuntu 16.04 LTS 3.4.2-0ubuntu0.16.04.1
  • spamassassin Ubuntu 18.04 LTS 3.4.2-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-11781

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

  • spamassassin RHEL 7 3.4.0-4.el7_5

red hat advisories RHSA-2018:2916

  • spamassassin SLE Module for Development Tools 15, SLE Module for Basesystem 15 3.4.2-7.4.1
  • spamassassin SLES for SAP 12 SP4, SLES 12 SP4, SLED 12 SP4 3.4.2-44.3.1

suse advisories SUSE-SU-2019:2011-1SUSE-SU-2019:1961-1

  • spamassassin openSUSE Leap 15.0 3.4.2-lp150.6.3.1

opensuse advisories openSUSE-SU-2019:1831-1

  • spamassassin Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 3.4.2-r0
  • spamassassin Alpine 3.8 3.4.3-r0

alpine advisories ALPINE-CVE-2018-11781

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-2018-11781 updated cvss 8.4

spamassassin: Local user code injection in the meta rule syntax

  • Red Hat Enterprise Linux 5 spamassassin Red Hat Enterprise Linux 6 spamassassin
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client Optional (v. 7) spamassassin 3.4.0-4.el7_5 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) spamassassin 3.4.0-4.el7_5 Red Hat Enterprise Linux Server (v. 7) spamassassin 3.4.0-4.el7_5 Red Hat Enterprise Linux Workstation (v. 7) spamassassin 3.4.0-4.el7_5
    fixed: vendor fix RHSA-2018:2916
  • Red Hat Enterprise Linux 8 spamassassin
    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

Exploit prediction

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Apache Software Foundation Apache SpamAssassin

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.