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TI-2006-02689 Aliases CVE-2006-2781GHSA-59hc-56j6-9j87

Double free vulnerability in nsVCard.cpp in Mozilla Thunderbird before 1.5.0.4 and…

Priority LOW 34CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

Double free vulnerability in nsVCard.cpp in Mozilla Thunderbird before 1.5.0.4 and SeaMonkey before 1.0.2 allows remote attackers to cause a denial of service (hang) and possibly execute arbitrary code via a VCard that contains invalid base64 characters.

Why it matters now

EPSS 0.03315 88th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

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:mozilla:seamonkey:*:*:*:*:*:*:*:*up to 1.0.1VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*up to 1.5.0.3VulnerableMozilla
  • cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* Versions up to 1.0.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions up to 1.5.0.3 Vulnerable ·Mozilla

Remediation

Red Hat 4 advisories

  • RHSA-2006:0594 Released 2006-08-28 · Red Hat rating Critical
    seamonkey security update (was mozilla)
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1
    • Red Hat Enterprise Linux ES version 2.1
    • Red Hat Enterprise Linux WS version 2.1
    • Red Hat Linux Advanced Workstation 2.1
  • RHSA-2006:0609 Released 2006-08-02 · Red Hat rating Critical
    seamonkey security update
    • Red Hat Enterprise Linux AS version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-0.10-0.2.el4.ppc +27
    • Red Hat Enterprise Linux Desktop version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +13
    • Red Hat Enterprise Linux ES version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +19
    • Red Hat Enterprise Linux WS version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +19
  • RHSA-2006:0611 Released 2006-07-29 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AS version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386
    • Red Hat Enterprise Linux ES version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64
    • Red Hat Enterprise Linux WS version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64
Show 1 more Red Hat advisories
  • RHSA-2006:0578 Released 2006-07-20 · Red Hat rating Critical
    seamonkey security update (was mozilla)
    • Red Hat Desktop version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-chat-1.0.2-0.1.0.EL3 +17
    • Red Hat Enterprise Linux AS version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +37
    • Red Hat Enterprise Linux ES version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +27
    • Red Hat Enterprise Linux WS version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +27

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2006:0594
Red Hat Enterprise Linux AS version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux AS version 4Fixed RHSA-2006:0609, RHSA-2006:0611
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2006:0609, RHSA-2006:0611
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2006:0594
Red Hat Enterprise Linux ES version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux ES version 4Fixed RHSA-2006:0609, RHSA-2006:0611
Red Hat Enterprise Linux WS version 2.1Fixed RHSA-2006:0594
Red Hat Enterprise Linux WS version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux WS version 4Fixed RHSA-2006:0609, RHSA-2006:0611
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2006:0594

Timeline

  1. 2026-10-02 Threatist record created from CVE-2006-2781
  2. 2026-10-03 Alias added: GHSA-59hc-56j6-9j87

References

Advisory 12

Other 4

  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-01166 Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and… CVSS 3.1CRITICAL 9.8
  • TI-2014-01165 The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4… CVSS 3.1CRITICAL 9.8
  • TI-2011-02075 Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x… CVSS 2.0HIGH 10.0
  • TI-2011-00061 Use-after-free vulnerability in Mozilla Firefox before 3.5.19 and 3.6.x before 3.6.17… CVSS 2.0HIGH 10.0
  • TI-2011-00068 Mozilla Firefox before 3.5.19 and 3.6.x before 3.6.17, and SeaMonkey before 2.0.14, does… CVSS 2.0HIGH 10.0
See all 703 →

Sources

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