Official description · NVDSource dataSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset. Copied from NVD.
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0243.
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown.Breakdown
78.4 / 100
Exploited
Yes, in CISA KEV
Reports
5
Tactics
1/15
How an attack unfolds
Based on MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. mappings. Select a step to see the evidence.
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 5 months after disclosure. Public exploit code (PoC-in-GitHub) appeared 13 days after disclosure.
CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
2 TechniqueOne specific attacker behaviour in MITRE ATT&CK, such as T1190 “Exploit Public-Facing Application”. IDs with a dot, like T1059.004, are sub-techniques., grouped by TacticThe attacker’s goal at a stage of an attack in MITRE ATT&CK, such as Initial Access or Persistence. Each technique belongs to one or more tactics. in kill-chain order, 6 cited passagesSourceSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset.2
ExecutionTA0002
Exploitation for Client ExecutionT1203Medium Confidence (technique links)How sure Patchfirst is that an ATT&CK technique applies to this CVE. High and medium links are shown by default; low ones come from early or generic mappings, text matching, or contradict the CVE’s details.
Source dataSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset. CTID attack_to_cve (Phase 1); claude-haiku-5-5: Memory handling flaw enables client-side code execution; AnnoCTR expert entity-linking label (train split).MITRE CTID mapping of the CVE · uncategorised
on a well-known Russian cybercrime forum, the seller offered two types of weaponized Microsoft Office documents (maldocs) to users: one that exploits a known vulnerability in Microsoft Office ([CVE-2017-8570](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-8570)) and another that uses a malicious
Malicious FileT1204.002Medium Confidence (technique links)How sure Patchfirst is that an ATT&CK technique applies to this CVE. High and medium links are shown by default; low ones come from early or generic mappings, text matching, or contradict the CVE’s details.
Source dataSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset. CTID attack_to_cve (Phase 1); claude-haiku-5-5: User opens malicious Office file triggering RCE.MITRE CTID mapping of the CVE · uncategorised
Lower-confidence links (1)
These come from early or generic mappings, text matching, or contradict this CVE’s details (for example a public-facing technique on a bug that needs a user to open a file). Shown for completeness.
Command and Scripting InterpreterT1059MachineMachine-matchedFound by keyword or pattern matching over threat-report text. Not reviewed by a person. AnnoCTR expert entity-linking label (train split).machine-matched from report text
Detection
0 rules for this CVE · 74 general rules for its techniques
Rules for this CVE
0Sigma ruleAn open, vendor-neutral detection rule for log data. Security teams convert Sigma rules into searches for their own SIEM. that reference CVE-2017-8570 directly.
CVE-specific rules are not available in this build. Search SigmaHQ ↗
General rules for this CVE’s techniques
These detect the technique in general, not this specific vulnerability.
Exploitation for Client ExecutionT120335general rules
Named in 5 threat reportsMachineMachine-matchedFound by keyword or pattern matching over threat-report text. Not reviewed by a person. Exact CVE id found in the report text.
Reports are matched by finding the exact id CVE-2017-8570 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.
…on a well-known Russian cybercrime forum, the seller offered two types of weaponized Microsoft Office documents (maldocs) to users: one that exploits a known vulnerability in Microsoft Office ([CVE-2017-8570](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-8570)) and another that uses a malicious…
Second, the threat actors exploit CVE-2017-8570 to achieve code execution via a malicious “scriptlet” file, or .sct file, which is also embedded in the malicious RTF document.
Specially-crafted documents, exploiting Office vulnerabilities such as CVE-2017-11882 and CVE-2017-8570, have been leveraged, even in present day campaigns.