Is CVE-2026-20948 in the CISA KEV catalog?

No. CVE-2026-20948 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-20948?

CVE-2026-20948 has a CVSS v3 base score of 7.8 (Important).

What is the EPSS score for CVE-2026-20948?

CVE-2026-20948 has an EPSS score of 0.53% (41th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-20948?

Install KB5002827 for Microsoft SharePoint Enterprise Server 2016. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-20948

HIGH

7.8

CVSS v3

NVD

Description

Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CWE-822Untrusted Pointer Dereference

How to fix

Remediation Available

Microsoft SharePoint Enterprise Server 2016Microsoft

Install:KB5002827Microsoft

Install:KB5002828Microsoft

Microsoft SharePoint Server 2019Microsoft

Install:KB5002823Microsoft

Install:KB5002825Microsoft

Microsoft Word 2016Microsoft

Install:KB5002829Microsoft

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploit Intelligence

0.53%probability of exploitation in 30 days

41stpercentile

Moderate risk: more likely to be exploited than 41% of all known CVEs.

References

Vendor Advisory1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-822 (Untrusted Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21768	High	7.8	65%	-	Fix
CVE-2024-21338	High	7.8	52%	KEV + Ransom	Fix
CVE-2024-35250	High	7.8	25%	KEV	Fix
CVE-2023-29360	High	8.4	22%	KEV	Fix
CVE-2023-36033	High	7.8	12%	KEV	Fix
CVE-2019-13334	High	7.8	6.8%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-16.