Digest · Wednesday
Security digest: January 21, 2026
1 known exploited (cisa kev) addition and 2 critical advisories.
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Take stock
- Do you run any of these? Cisco Unified Communications Manager. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2026-02-11.
- npm: 1 critical advisory (
sm-crypto). Check withnpm audit (or: npm ls <package>). - Composer (PHP): 1 critical advisory (
laravel/reverb). Check withcomposer audit. - None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.
Known exploited (CISA KEV) 1
Added to CISA’s catalog on this day: confirmed exploitation in the wild. Due date = CISA’s deadline for US federal agencies.
| CVE | Product and flaw | CISA due |
|---|---|---|
| CVE-2026-20045 | Cisco Unified Communications Manager Cisco Unified Communications Products Code Injection Vulnerability | 2026-02-11 |
Critical advisories by ecosystem 2
GitHub-reviewed advisories rated critical, published this day (Pacific time).
Composer (PHP) 1
Check: composer audit
- Laravel Redis Horizontal Scaling Insecure Deserialization CVE-2026-23524 CVSS 9.8 Critical
laravel/reverb< 1.7.0 → fixed in 1.7.0
npm 1
Check: npm audit (or: npm ls <package>)
- sm-crypto Affected by Private Key Recovery in SM2-PKE CVE-2026-23966 CVSS 9.1 Critical
sm-crypto< 0.3.14 → fixed in 0.3.14