Read the docs
TI-2018-11118 Aliases CVE-2018-15587GHSA-9p6f-v932-mfxm

GNOME Evolution through 3.28.2 is prone to OpenPGP signatures being spoofed for arbitrary…

Priority LOW 34CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 10 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-347.

Summary

GNOME Evolution through 3.28.2 is prone to OpenPGP signatures being spoofed for arbitrary messages using a specially crafted email that contains a valid signature from the entity to be impersonated as an attachment.

Why it matters now

EPSS 0.02443 84th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 10 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:gnome:evolution:*:*:*:*:*:*:*:*up to 3.28.2VulnerableGNOME
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:a:gnome:evolution:*:*:*:*:*:*:*:* Versions up to 3.28.2 Vulnerable ·GNOME
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

Red Hat 2 advisories

  • RHSA-2020:1600 Released 2020-04-28 · Red Hat rating Moderate
    evolution security and bug fix update
    • Red Hat CodeReady Linux Builder (v. 8) evolution-data-server-doc-3.28.5-13.el8, evolution-data-server-perl-3.28.5-13.el8, evolution-data-server-tests-3.28.5-13.el8 +1
    • Red Hat Enterprise Linux AppStream (v. 8) evolution-3.28.5-12.el8, evolution-bogofilter-3.28.5-12.el8, evolution-data-server-3.28.5-13.el8 +8
  • RHSA-2020:1080 Released 2020-03-31 · Red Hat rating Moderate
    evolution security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) atk-2.28.1-2.el7, evolution-3.28.5-8.el7, evolution-data-server-3.28.5-4.el7 +5
    • Red Hat Enterprise Linux Client Optional (v. 7) atk-devel-2.28.1-2.el7, evolution-bogofilter-3.28.5-8.el7, evolution-data-server-devel-3.28.5-4.el7 +7
    • Red Hat Enterprise Linux ComputeNode (v. 7) atk-2.28.1-2.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) atk-devel-2.28.1-2.el7, evolution-data-server-3.28.5-4.el7, evolution-data-server-devel-3.28.5-4.el7 +4
    • Red Hat Enterprise Linux Server (v. 7) atk-2.28.1-2.el7, atk-2.28.1-2.el7.ppc, atk-devel-2.28.1-2.el7 +5
    • Red Hat Enterprise Linux Server Optional (v. 7) evolution-3.28.5-8.el7, evolution-bogofilter-3.28.5-8.el7, evolution-data-server-devel-3.28.5-4.el7 +13
    • Red Hat Enterprise Linux Workstation (v. 7) atk-2.28.1-2.el7, atk-devel-2.28.1-2.el7, evolution-3.28.5-8.el7 +7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) evolution-bogofilter-3.28.5-8.el7, evolution-data-server-doc-3.28.5-4.el7, evolution-data-server-perl-3.28.5-4.el7 +5

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:1600
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:1600
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:1080
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:1080
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:1080
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:1080
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:1080
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:1080
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:1080
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:1080

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-15587
  2. 2026-10-03 Alias added: GHSA-9p6f-v932-mfxm

References

Exploit 1

Advisory 9

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences