Threat Intelligence / CVE / CVE-2017-11882

CVE-2017-11882 — Microsoft Office

CISA KEVRansomware
CVSS v3.1 7.8 (HIGH) · EPSS 94.3% (higher than 99.9% of all scored CVEs) · Priority 10/10 · Published 2017-11-15

As of 2025-10-22, CVE-2017-11882 is a HIGH-severity vulnerability in Microsoft Office, CVSS v3.1 7.8, EPSS 94.3% (99.9th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), with a US federal remediation deadline of 2022-05-03, and CISA links it to known ransomware campaigns. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2017-11882, most recently “Agent Tesla .NET Remote Access Trojan — Credential and Data Theft via Keylogging and MaaS Operations”.

Last updated: 2025-10-22

What is CVE-2017-11882?

Microsoft Office 2007 Service Pack 3, Microsoft Office 2010 Service Pack 2, Microsoft Office 2013 Service Pack 1, and Microsoft Office 2016 allow an attacker to run arbitrary code in the context of the current user by failing to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11884.

The record classifies CVE-2017-11882 under weakness class CWE-119. Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 4 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 3226 days ago.

Severity and exploitation probability

CVSS v3.1 base score
7.8 — HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (FIRST)
94.3% probability of exploitation in the next 30 days, higher than 99.9% of all scored CVEs
CISA KEV
Listed since 2021-11-03, federal remediation deadline 2022-05-03 — used in known ransomware campaigns
Threadlinqs priority
10/10 — CISA lists it as used in ransomware, which Threadlinqs scores at the maximum
Published
2017-11-15, last modified 2025-10-22

Is CVE-2017-11882 being exploited?

CISA added CVE-2017-11882 to the Known Exploited Vulnerabilities catalog on 2021-11-03, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2022-05-03 under BOD 22-01. CISA flags the vulnerability as one used in known ransomware campaigns. It currently carries a trending score of 40 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2017-11882

The record marks a vendor fix as available for CVE-2017-11882. Patch reference: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-11882. Vendor advisory: https://0patch.blogspot.com/2017/11/official-patch-for-cve-2017-11882-meets.html. Because CVE-2017-11882 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2022-05-03. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2017-11882

1 tracked threat in the Threadlinqs corpus references CVE-2017-11882, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2017-11882 are available via the Threadlinqs MCP server (Purple tier). View plans →

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