Widespread PHP Flaw May Cause Many Site Outages Today
Expect to see quite a few websites serving "404" or "Page Not Found" errors today: Nearly 70 percent of websites need to update their core software to fix a pair of vulnerabilities that allow an attacker to seize full control over affected servers. Experts say there are working exploits for the flaws, and that these critical bugs are already being exploited in the wild.
Excerpt from the primary source: Krebs on Security
Who is affected
Security professionals
Why it matters
Source reporting says attackers are already exploiting this, so exposed affected systems are at immediate risk.
Automated: stated only from CISA listings and the exploitation evidence in the sources below.
What you should do · Review
Review whether your organization uses the affected products and assess exposure using the linked advisories.
Automated guidance based on this story's classification. Check the linked advisories for specifics.
Sources
We link to original and authoritative sources. Headlines and excerpts belong to their publishers.
Original reporting
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Attackers are exploiting this at scale, so exposed affected systems are likely to be targeted quickly.
Treat this as an emergency.