CVE-2017-11826
Confirmed PUBLISHEDMicrosoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.
- CVE Published
- Oct 13, 2017
- Exploitation Reported
- Mar 03, 2022
- CVSS
- 7.8 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Microsoft Corporation |
Microsoft Office
|
Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, Office Online Server. |
Affected |
CVE References
- 101219 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/101219
- 1039541 securitytracker.com · VDB Entry http://www.securitytracker.com/id/1039541
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826 portal.msrc.microsoft.com · CVE Record https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CV...
- 0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-wor... 0patch.blogspot.com · CVE Record https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-...
- tarlogic.com/en/blog/exploiting-word-cve-2017-11826 tarlogic.com · CVE Record https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/
Show 1 more reference
- securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-... securingtomorrow.mcafee.com · CVE Record https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-o...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-03-03 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:C/I:C/A:C
Exploitation Status
Exploited in the wild
Recorded 2022-03-03 00:00:00 UTC · CISA
Proof of concept available
Recorded 2018-02-09 17:20:53 UTC · GitHub
Weaknesses (CWE)
-
Improper Restriction of Operations within the Bounds of a Memory Buffer
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2018-02-09 17:20:53 UTC · 9 stars
Exploit for CVE-2017-11826
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
17:20 UTC over 8 years ago17:20 UTC · over 8 years ago
Public PoC available
Public proof-of-concept code published
-
13:00 UTC almost 9 years ago13:00 UTC · almost 9 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC almost 9 years ago00:00 UTC · almost 9 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2017-11826
{
"cve_id": "CVE-2017-11826",
"title": "Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2...",
"affected_vendor": "Microsoft Corporation",
"affected_product": "Microsoft Office",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}