CVE-2026-50055

mediumpriority · track · 10OT risk · elevatedEPSS 0.004 · 30 %ileexploit · PoCDE
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
0.36% (30th) EPSS
CVSS 6.5 · medium
Is it mine?
1 products
Check your exposure
Who says so?
1 sources
cert_bund

EPSS · scored 2026-10-26

A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address.

01

cvss

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

6.5
010

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

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · cve@rapid7.comexploitability 2.8 · impact 3.6
v3.16.2mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Psecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863US
04

exploits (1)

Public proof-of-concept and weaponised exploit code.

05

affected products (1)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-2429Synacor Zimbra: Mehrere SchwachstellenDeutsch2026-07-20csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Synacor Zimbra ausnutzen, um beliebigen Programmcode auszuführen, Cross-Site-Scripting-Angriffe durchzuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen und unbefugte Aktionen durchzuführen.

07

sources

Which sources assert this record, and when.

cert_bundNVDCVE.orgMITRE
published 2026-10-08modified 2026-10-08
08

references (1) nvd

External citations — patches, advisories, analysis.

scry

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