HOMEVULNERABILITIESCVE-2020-35123
MEDIUM

CVE-2020-35123

CWE-611Published: December 17, 2020· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

In Zimbra Collaboration Suite Network Edition versions < 9.0.0 P10 and 8.8.15 P17, there exists an XXE vulnerability in the saml consumer store extension, which is vulnerable to XXE attacks. This has been fixed in Zimbra Collaboration Suite Network edition 9.0.0 Patch 10 and 8.8.15 Patch 17.

NVD Source

Technical Analysis

CVE-2020-35123 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

zimbra1 product(s)
collaboration
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P17
ADVISORYhttps://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P10
ADVISORYhttps://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
ADVISORYhttps://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P17
ADVISORYhttps://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P10
ADVISORYhttps://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

All References (8)

→
https://wiki.zimbra.com/wiki/Security_CenterProduct
→
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P17Release Notes · Vendor Advisory
→
https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P10Third Party Advisory · Vendor Advisory
→
https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory
→
https://wiki.zimbra.com/wiki/Security_CenterProduct
→
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P17Release Notes · Vendor Advisory
→
https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P10Third Party Advisory · Vendor Advisory
→
https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory

Quick Facts

CVE IDCVE-2020-35123
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-611
CISA KEVNo
Affected1 vendor(s)
PublishedDec 17, 2020

Related CVEs (CWE-611)

CVE-2018-1000652
10.0
CVE-2018-1000651
10.0
CVE-2023-38490
10.0
CVE-2018-1000124
10.0
CVE-2018-1000644
10.0
CVE-2019-14678
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-35123 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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