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CVE detail

CVE-2026-26144

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

CVSS 7.5 · HighBuzz score 35.9

Buzz score

Why this CVE is surfacing

Buzz score total 35.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 17.9 · diversity 18.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
17.9
5 evidence mentions in the snapshot
Diversity score
18.0
5 sources across 3 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
5 source links · newest first
  • March 2026 Patch Tuesday fixes two zero-day vulnerabilitiesMalwarebytes Labs

    Microsoft patched 79 security vulnerabilities this month, including bugs that could let attackers escalate privileges or crash critical services.

    newswww.malwarebytes.comMar 11, 2026, 10:47 AM
  • Microsoft patches 80+ vulnerabilities, six flagged as “more likely” to be exploitedHelp Net Security

    On March 2026 Patch Tuesday, Microsoft addressed 80+ vulnerabilities affecting its software and cloud services. Of these, two were publicly disclosed, but not actively exploited. Privilege escalation vulnerabilities abound The two publicly disclosed flaws are CVE-2026-21262, a vulnerability in SQL Server that may allow attackers to gain SQLAdmin privileges, and CVE-2026-26127, a .NET flaw that can be triggered for a denial of service attack. The former is “less likely” to be exploited, and the latter … More →

    newswww.helpnetsecurity.comMar 11, 2026, 10:31 AM
  • March Patch Tuesday: Three high severity holes in Microsoft OfficeCSO Online

    Three high severity holes in Microsoft’s Office suite headline the 78 issues listed in the March Patch Tuesday releases, which, grateful CSOs will notice, contain no surprise zero day vulnerabilities. Still, Jack Bicer, director of vulnerability research at Action1, says these Office-related flaws should be treated “with urgency.” “Productivity tools remain one of the most […]

    newswww.csoonline.comMar 10, 2026, 11:36 PM
  • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26144msrc.microsoft.com

    No excerpt available.

    Vendor Advisorymsrc.microsoft.comMar 10, 2026, 6:18 PM
  • The March 2026 Security Update ReviewZero Day Initiative

    et’s take a closer look at some of the more interesting updates for this month, starting with a bug with an AI slant: - CVE-2026-26144 - Microsoft Excel Information Disclosure Vulnerability This is a fascinating bug and an attack scenario we’re likely to see more often. The vulnerability is a simple cross-site scripting (XSS) bug in Excel, but an attac

    vendorwww.thezdi.comMar 10, 2026, 5:57 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

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