CVE-2017-0260 — A remote code execution vulnerability exists in Microsoft Office when the software fails to...
A remote code execution vulnerability exists in Microsoft Office when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8509, CVE-2017-8510, CVE-2017-8511, CVE-2017-8512, and CVE-2017-8506.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 19.9% (30-day exploitation probability)+15
- Technical severity (high)+6
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — portal.msrc.microsoft.com (NIST National Vulnerability Database)
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Microsoft Office, Microsoft Windows 7, Microsoft Windows Server 2008).
- Apply the fixed version or the patch documented under Remediation.
- Exploitation requires user interaction: tighten email/web filtering and warn affected users.
- EPSS ahead of 97% of scored CVEs: prioritize it in the patch queue.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Microsoft | Office | version 2013-sp1version 2016 | Vulnerable | NIST National Vulnerability Database |
| Microsoft | Office | version Microsoft Office 2013 Service Pack 1 Click-to-Run (C2R), Microsoft Office 2016 C | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Microsoft | Windows 7 | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Microsoft | Windows Server 2008 | versions not specified by the sourceversion r2-sp1 | Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 7.8 | CVSS 3.0 | High | 1.8 | 5.9 | nvd@nist.gov via NIST National Vulnerability Database |
| 7.8 | CVSS 3.0 | High | — | — | GitHub, Inc. via GitHub Security Advisories |
| 9.3 | CVSS 2.0 | High | 8.6 | 10.0 | nvd@nist.gov via NIST National Vulnerability Database |
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov) Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · microsoft corporation/microsoft office
- Record published
- Fix documented
- Affected products added · microsoft/office, microsoft/windows 7, microsoft/windows server 2008
- CVSS changed · 7.8
- Source status changed · → Modified
- Record created in this database
- 2017
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 2× References added · Oct 15, 2026 – Oct 15, 2026
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
5 on the record
Elsewhere on this site
Related CVEs (same products)
- High CVE-2026-47293 Microsoft Office Click-To-Run Elevation of Privilege Vulnerability Jun 9, 2026
- Medium CVE-2026-42832 Microsoft Office Spoofing Vulnerability May 12, 2026
- High CVE-2026-42831 Microsoft Office Remote Code Execution Vulnerability May 12, 2026
- High CVE-2026-40419 Microsoft Office Click-To-Run Elevation of Privilege Vulnerability May 12, 2026
- High CVE-2026-40420 Microsoft Office Click-To-Run Elevation of Privilege Vulnerability May 12, 2026
- Medium CVE-2026-40421 Microsoft Word Information Disclosure Vulnerability May 12, 2026
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No CISA SSVC assessment.
- No CWE classification.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2017-0260 is "A remote code execution vulnerability exists in Microsoft Office when the software fails to...", rated High. It affects Office (Microsoft); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.8 describes technical severity. EPSS 19.94% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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