MEDIUM CISA KEV Actively Exploited

CVE-2026-31431

crypto: algif_aead - Revert to operating out-of-place

CVSS v3

7.8

MEDIUM

EPSS Score

3.9 %

exploit probability

CISA KEV

Yes

known exploited

Exploitation

active

SSVC status

Description

Microsoft Security Update (CVE-2026-31431)

CISA Known Exploited Vulnerability

Date Added: 2026-05-01
Patch Due Date: 2026-05-15
Ransomware Use: Unknown

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2026-05-07
MSRC Title: crypto: algif_aead - Revert to operating out-of-place

Frequently asked questions

What is CVE-2026-31431?

Microsoft Security Update (CVE-2026-31431)

Is CVE-2026-31431 actively exploited?

Yes. CVE-2026-31431 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-05-15.

What is the CVSS score for CVE-2026-31431?

CVE-2026-31431 has a CVSS v3 base score of 7.8 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is CVE-2026-31431 affecting your environment?

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