CVE-2026-59117: Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code over a netw

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HIGH 7.5WATCHLISTMITIGATE

CVE-2026-59117 is a high-severity flaw (CVSS 7.5) affecting terminal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code over a network.

Why this priority

High severity
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-190
Published	2026-07-16
Last modified	2026-10-24

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-16 22:17 UTCPublished CVE record published
2026-10-24 20:10 UTCUpdated Record last modified

microsoft terminal MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy terminal || rpm -q terminal || terminal --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-59117?

terminal: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-59117 being exploited?

CVE-2026-59117 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-59117 affect?

CVE-2026-59117 affects terminal. Severity is high (CVSS 7.5). Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code over a network.

How urgent is CVE-2026-59117?

Priority 43/100. High severity; On your watchlist

Software pages

Windows vulnerabilities

References

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