CVE-2017-1129Notes Vulnerability
IBM Notes 8.5 and 9.0 is vulnerable to a denial of service.
Published Sep 5, 2017 · Updated May 12, 2026
Key Facts
Routine patching- CVE-2017-1129 is a medium-severity vulnerability (CVSS 6.5 v3) affecting Expeditor (Ibm), Inotes (Ibm), Lotus Expeditor and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 30% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v3
6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
30%
Higher than 98.2% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
38/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
3
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
IBM Notes 8.5 and 9.0 is vulnerable to a denial of service. If a user is persuaded to click on a malicious link, it could cause the Notes client to hang and have to be restarted. IBM X-Force ID: 121370.
Affected Products
19 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ExpeditorIbm | 6.2.1, 6.2.2, 6.2.3 | n/a |
| InotesIbm | 8.5.0.0, 8.5.1.0, 8.5.1.1, 8.5.1.5, 8.5.2.0, 8.5.2.1, 8.5.2.4, 8.5.3.0 | n/a |
| Lotus Expeditor | >= 6.2.1 | n/a |
| Notes | >= 8.5.3.6 | n/a |
Timeline
Publicly disclosed
Sep 5, 2017
Last updated
May 12, 2026
References
- advisoryexchange.xforce.ibmcloud.com · 121370
- patchibm.com · docview.wss
- patchibm.com · docview.wss
- exploitExploitDB-42602
- exploit42602
FAQ
Common Questions.
IBM Notes 8.5 and 9.0 is vulnerable to a denial of service.
Affected: Expeditor (Ibm) versions 6.2.1, 6.2.2, 6.2.3; Inotes (Ibm) versions 8.5.0.0, 8.5.1.0, 8.5.1.1, 8.5.1.5, 8.5.2.0, 8.5.2.1, 8.5.2.4, 8.5.3.0; Lotus Expeditor versions >= 6.2.1, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2017-1129 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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