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TI-2023-11697 Aliases CVE-2023-26562GHSA-cqc2-xcqm-6c3r

In Zimbra Collaboration (ZCS) 8.8.15 and 9.0, a closed account (with 2FA and generated…

Priority LOW 30CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.

Summary

In Zimbra Collaboration (ZCS) 8.8.15 and 9.0, a closed account (with 2FA and generated passwords) can send e-mail messages when configured for Imap/smtp.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00585 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

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

CPE configurations NVD · 67

CPEVersionsRoleVendor
cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:*8.8.15VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p1:*:*:*:*:*:*8.8.15 p1VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p10:*:*:*:*:*:*8.8.15 p10VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p11:*:*:*:*:*:*8.8.15 p11VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p12:*:*:*:*:*:*8.8.15 p12VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p13:*:*:*:*:*:*8.8.15 p13VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p14:*:*:*:*:*:*8.8.15 p14VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p15:*:*:*:*:*:*8.8.15 p15VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p16:*:*:*:*:*:*8.8.15 p16VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p17:*:*:*:*:*:*8.8.15 p17VulnerableZimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:* Versions 8.8.15 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p1:*:*:*:*:*:* Versions 8.8.15 p1 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p10:*:*:*:*:*:* Versions 8.8.15 p10 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p11:*:*:*:*:*:* Versions 8.8.15 p11 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p12:*:*:*:*:*:* Versions 8.8.15 p12 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p13:*:*:*:*:*:* Versions 8.8.15 p13 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p14:*:*:*:*:*:* Versions 8.8.15 p14 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p15:*:*:*:*:*:* Versions 8.8.15 p15 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p16:*:*:*:*:*:* Versions 8.8.15 p16 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p17:*:*:*:*:*:* Versions 8.8.15 p17 Vulnerable ·Zimbra
Show 57 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:zimbra:collaboration:8.8.15:p18:*:*:*:*:*:*8.8.15 p18VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p19:*:*:*:*:*:*8.8.15 p19VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p2:*:*:*:*:*:*8.8.15 p2VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p20:*:*:*:*:*:*8.8.15 p20VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p21:*:*:*:*:*:*8.8.15 p21VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p22:*:*:*:*:*:*8.8.15 p22VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p23:*:*:*:*:*:*8.8.15 p23VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p24:*:*:*:*:*:*8.8.15 p24VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p25:*:*:*:*:*:*8.8.15 p25VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p26:*:*:*:*:*:*8.8.15 p26VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p27:*:*:*:*:*:*8.8.15 p27VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p28:*:*:*:*:*:*8.8.15 p28VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p29:*:*:*:*:*:*8.8.15 p29VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p3:*:*:*:*:*:*8.8.15 p3VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p30:*:*:*:*:*:*8.8.15 p30VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p31:*:*:*:*:*:*8.8.15 p31VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p32:*:*:*:*:*:*8.8.15 p32VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p33:*:*:*:*:*:*8.8.15 p33VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p34:*:*:*:*:*:*8.8.15 p34VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p35:*:*:*:*:*:*8.8.15 p35VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p36:*:*:*:*:*:*8.8.15 p36VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p4:*:*:*:*:*:*8.8.15 p4VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p5:*:*:*:*:*:*8.8.15 p5VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p6:*:*:*:*:*:*8.8.15 p6VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p7:*:*:*:*:*:*8.8.15 p7VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p8:*:*:*:*:*:*8.8.15 p8VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:8.8.15:p9:*:*:*:*:*:*8.8.15 p9VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*9.0.0VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p0:*:*:*:*:*:*9.0.0 p0VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p1:*:*:*:*:*:*9.0.0 p1VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p10:*:*:*:*:*:*9.0.0 p10VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p11:*:*:*:*:*:*9.0.0 p11VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p12:*:*:*:*:*:*9.0.0 p12VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p13:*:*:*:*:*:*9.0.0 p13VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p14:*:*:*:*:*:*9.0.0 p14VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p15:*:*:*:*:*:*9.0.0 p15VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p16:*:*:*:*:*:*9.0.0 p16VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p19:*:*:*:*:*:*9.0.0 p19VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p2:*:*:*:*:*:*9.0.0 p2VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p20:*:*:*:*:*:*9.0.0 p20VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p21:*:*:*:*:*:*9.0.0 p21VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p23:*:*:*:*:*:*9.0.0 p23VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p24:*:*:*:*:*:*9.0.0 p24VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p24.1:*:*:*:*:*:*9.0.0 p24.1VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p25:*:*:*:*:*:*9.0.0 p25VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p26:*:*:*:*:*:*9.0.0 p26VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p27:*:*:*:*:*:*9.0.0 p27VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p28:*:*:*:*:*:*9.0.0 p28VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p29:*:*:*:*:*:*9.0.0 p29VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p3:*:*:*:*:*:*9.0.0 p3VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p4:*:*:*:*:*:*9.0.0 p4VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p5:*:*:*:*:*:*9.0.0 p5VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p6:*:*:*:*:*:*9.0.0 p6VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p7:*:*:*:*:*:*9.0.0 p7VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p7.1:*:*:*:*:*:*9.0.0 p7.1VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p8:*:*:*:*:*:*9.0.0 p8VulnerableZimbra
cpe:2.3:a:zimbra:collaboration:9.0.0:p9:*:*:*:*:*:*9.0.0 p9VulnerableZimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p18:*:*:*:*:*:* Versions 8.8.15 p18 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p19:*:*:*:*:*:* Versions 8.8.15 p19 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p2:*:*:*:*:*:* Versions 8.8.15 p2 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p20:*:*:*:*:*:* Versions 8.8.15 p20 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p21:*:*:*:*:*:* Versions 8.8.15 p21 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p22:*:*:*:*:*:* Versions 8.8.15 p22 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p23:*:*:*:*:*:* Versions 8.8.15 p23 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p24:*:*:*:*:*:* Versions 8.8.15 p24 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p25:*:*:*:*:*:* Versions 8.8.15 p25 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p26:*:*:*:*:*:* Versions 8.8.15 p26 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p27:*:*:*:*:*:* Versions 8.8.15 p27 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p28:*:*:*:*:*:* Versions 8.8.15 p28 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p29:*:*:*:*:*:* Versions 8.8.15 p29 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p3:*:*:*:*:*:* Versions 8.8.15 p3 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p30:*:*:*:*:*:* Versions 8.8.15 p30 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p31:*:*:*:*:*:* Versions 8.8.15 p31 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p32:*:*:*:*:*:* Versions 8.8.15 p32 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p33:*:*:*:*:*:* Versions 8.8.15 p33 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p34:*:*:*:*:*:* Versions 8.8.15 p34 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p35:*:*:*:*:*:* Versions 8.8.15 p35 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p36:*:*:*:*:*:* Versions 8.8.15 p36 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p4:*:*:*:*:*:* Versions 8.8.15 p4 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p5:*:*:*:*:*:* Versions 8.8.15 p5 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p6:*:*:*:*:*:* Versions 8.8.15 p6 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p7:*:*:*:*:*:* Versions 8.8.15 p7 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p8:*:*:*:*:*:* Versions 8.8.15 p8 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:8.8.15:p9:*:*:*:*:*:* Versions 8.8.15 p9 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:* Versions 9.0.0 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p0:*:*:*:*:*:* Versions 9.0.0 p0 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p1:*:*:*:*:*:* Versions 9.0.0 p1 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p10:*:*:*:*:*:* Versions 9.0.0 p10 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p11:*:*:*:*:*:* Versions 9.0.0 p11 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p12:*:*:*:*:*:* Versions 9.0.0 p12 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p13:*:*:*:*:*:* Versions 9.0.0 p13 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p14:*:*:*:*:*:* Versions 9.0.0 p14 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p15:*:*:*:*:*:* Versions 9.0.0 p15 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p16:*:*:*:*:*:* Versions 9.0.0 p16 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p19:*:*:*:*:*:* Versions 9.0.0 p19 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p2:*:*:*:*:*:* Versions 9.0.0 p2 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p20:*:*:*:*:*:* Versions 9.0.0 p20 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p21:*:*:*:*:*:* Versions 9.0.0 p21 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p23:*:*:*:*:*:* Versions 9.0.0 p23 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p24:*:*:*:*:*:* Versions 9.0.0 p24 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p24.1:*:*:*:*:*:* Versions 9.0.0 p24.1 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p25:*:*:*:*:*:* Versions 9.0.0 p25 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p26:*:*:*:*:*:* Versions 9.0.0 p26 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p27:*:*:*:*:*:* Versions 9.0.0 p27 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p28:*:*:*:*:*:* Versions 9.0.0 p28 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p29:*:*:*:*:*:* Versions 9.0.0 p29 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p3:*:*:*:*:*:* Versions 9.0.0 p3 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p4:*:*:*:*:*:* Versions 9.0.0 p4 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p5:*:*:*:*:*:* Versions 9.0.0 p5 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p6:*:*:*:*:*:* Versions 9.0.0 p6 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p7:*:*:*:*:*:* Versions 9.0.0 p7 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p7.1:*:*:*:*:*:* Versions 9.0.0 p7.1 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p8:*:*:*:*:*:* Versions 9.0.0 p8 Vulnerable ·Zimbra
  • cpe:2.3:a:zimbra:collaboration:9.0.0:p9:*:*:*:*:*:* Versions 9.0.0 p9 Vulnerable ·Zimbra

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-26562
  2. 2026-10-03 Alias added: GHSA-cqc2-xcqm-6c3r

References

Advisory 1

Other 2

  • TI-2024-18266 An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0. KEVCVSS 3.1MEDIUM 6.1
  • TI-2024-30553 An issue was discovered in Zimbra Collaboration (ZCS) 10.1.x before 10.1.1, 10.0.x before… CVSS 3.1HIGH 8.8
  • TI-2022-13998 Zimbra Collaboration Open Source 8.8.15 does not encrypt the initial-login randomly… CVSS 3.1CRITICAL 9.8
  • TI-2023-13772 An issue in Zimbra Collaboration ZCS v.8.8.15 and v.9.0 allows an attacker to execute… CVSS 3.1CRITICAL 9.8
  • TI-2023-13771 An issue in Zimbra Collaboration (ZCS) v.8.8.15 and v.9.0 allows a remote attacker to… CVSS 3.1CRITICAL 9.8
  • TI-2023-27722 Zimbra Collaboration before Kepler 9.0.0 Patch 38 GA allows DOM-based JavaScript injection in the Modern UI. CVSS 3.1CRITICAL 9.1
See all 40 →

Sources

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