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Top Attack·August 31, 2026·Cybersecurity PSA

CISA Adds Two Known Exploited Vulnerabilities to Catalog

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CISA Cybersecurity Advisories & Alerts ↗
TL;DR
The fast version

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-81578 PaperCut NG/MF Missing Authentication for Critical Function Vulnerability CVE-2026-82078 PaperCut NG/MF Unsafe Reflection Vulnerability These types of vulnerabilities are a frequent attack…

Detailed briefing

What happened

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets…

What is verified

While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities.

CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

Aware of an exploited vulnerability not currently listed in the KEV Catalog?

Why it matters

A confirmed cyber incident can create secondary risk long after the initial intrusion. Stolen account data, contact information, or business records may be reused for phishing, credential attacks, identity fraud, or targeted social engineering. The source-backed facts above describe the incident; the downstream risk depends on what information was actually exposed.

What you should do

If you are notified that your information or account was affected, follow the organization’s incident instructions first. Change reused passwords, enable multifactor authentication, watch for targeted phishing, review security alerts and account sessions, and monitor financial or identity activity when sensitive personal information may have been involved.