CVE-2018-10949

mediumpriority · track · 32EPSS 0.024 · 84 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

2.38% (84th) EPSS

CVSS 5 · medium

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-26

mailboxd in Zimbra Collaboration Suite 8.8 before 8.8.8; 8.7 before 8.7.11.Patch3; and 8.6 allows Account Enumeration by leveraging a Discrepancy between the "HTTP 404 - account is not active" and "HTTP 401 - must authenticate" errors.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.05mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-203USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

0x00-0x00/CVE-2018-10949Zimbra Collaboration Suite Username Enumeration PoC · poc_in_github

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
synacor zimbra collaboration suite= 8.6.0nvdUScpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
synacor zimbra collaboration suite8.7.0 → 8.7.11nvdUScpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
synacor zimbra collaboration suite8.8 → 8.8.8nvdUScpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-05-10modified 2026-06-17

related (886)

Related entries.

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+881 more

references (4)

External citations — patches, advisories, analysis.

https://bugzilla.zimbra.com/show_bug.cgi?id=108962 cnnvd
https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesPatchcnnvd
https://bugzilla.zimbra.com/show_bug.cgi?id=108962 enisa_euvd
https://bugzilla.zimbra.com/show_bug.cgi?id=108962Issue TrackingThird Party Advisorynvd

scry

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