Topic
The use of known software vulnerabilities, often soon after a patch is released, to gain unauthorized access or compromise systems.
Attackers began exploiting a CVSS 10.0 AhsayCBS chain on October 7, three days after the CVEs published, per a DEV Community analysis. Teams with internet-reachable servers should confirm the exact build number now, because it decides whether they are exposed.
Reality
Attackers began targeting SonicWall's maximum-severity SMA1000 flaw CVE-2026-102255 within three days of its patch, Previdian's honeypots show. SonicWall's advisory had not called it exploited by Friday, so owners waiting on that label are patching behind the attackers.
Perspective Coverage
7 publishersReality
Microsoft says attackers are exploiting SharePoint flaw CVE-2026-65660, roughly six weeks after it shipped a fix in August. Any server still missing that update should be treated as possibly compromised, checked for webshells and patched.
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4 publishersReality
Arctic Wolf reports the two newly disclosed PaperCut bugs being used together against K-12 and university print servers in the US and Europe, with collection aimed at the directory credentials the server stores to do its job.
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3 publishersReality
WatchTowr reproduced CVE-2026-19478 from the advisory and patch alone, then caught the first exploitation attempts on its honeypots. Self-managed owners do not get a week to schedule this.
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5 publishersReality
One HTTP request to an unauthenticated cluster-join endpoint returns a non-expiring Artifactory admin token, and Fastly logged the volume going from single-digit probes to indiscriminate spraying in five days.
Reality
VulnCheck says attackers are probing internet-facing Rejetto HFS servers for CVE-2026-61500, a signing-key flaw that gives full administrative control. The bug affects HFS 3.0.0 through 3.2.0, and the fix shipped in 3.2.1.
Reality
FortiGuard Labs says the ClingSTUN Linux backdoor exploits two dozen flaws in a dozen vendors' gear and carries seven more to spread itself. Exploitation is indiscriminate, so any reachable vulnerable device on those lists, Ivanti's included, can join its proxy pool.
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3 publishersReality
TASK#STOMP, a Windows backdoor researchers dissected, uploads a victim's business documents and then stays to copy each new or edited one. Loss from a single infection keeps growing until someone finds and removes it.
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ShinyHunters is exploiting an unpatched CVSS 9.8 pre-login flaw in Oracle PeopleSoft, encoding one URL character to slip past WAF rules matching the raw path. Mandiant has confirmed JSP web shells on dozens of systems.
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The updated CISA-FBI advisory puts Medusa at more than 500 victims as of April 2026, up from 300, with exploits weaponized within 24 hours and sometimes a week before disclosure.
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7 publishersReality
ShinyHunters is mass-exploiting PeopleSoft systems that added firewall rules after the summer breaches but skipped Oracle's patch, Mandiant said. For operators that wrote a filter and stopped, the remedy in the report is the patch Oracle already shipped.
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The probes read Langflow's secret key file and grep the process environment for OpenAI and AWS credentials, which puts an AI orchestration tool on the same scanning clock as the Rails file-read bug of the same week.
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4 publishersReality
GreyNoise and Blackpoint Cyber trace the new PaperCut auth-bypass chain to one scanning address running AI agents against schools, which turns an unpatched print server from a maintenance ticket into a credential incident.
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6 publishersReality
Rapid7 published a Metasploit module for CVE-2026-85706, an unauthenticated file read it says is already exploited against self-hosted GitLab. Every CE and EE build from 18.7 stays exposed until 19.1.8, 19.2.6 or 19.3.2.
Reality
The fix ships in 19.3.2, 19.2.6 and 19.1.8, and scanning for the flaw started the day after disclosure. Whether you can tell if a read succeeded on your instance depends on whether your proxy logs request bodies.
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3 publishersReality
Wiz observed multiple actors chaining CVE-2026-42018 and CVE-2026-42016 against self-hosted JFrog Artifactory between August 15 and September 8, creating admin accounts, loading Groovy plugins and dropping a Rust backdoor.
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4 publishersReality
CVE-2026-59310 gave a suspected APT crew persistence on vCenter systems in August. CISA has now flagged the same directory traversal as abused by ransomware operators. Broadcom patched it on July 29.
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WSO2 published the fix in May. watchTowr saw forged tokens arrive at its honeypot in September. Its own replay against a correctly targeted deployment came back with the credentials the gateway holds.
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The flaw reaches code execution only where the active theme has a top-level directory starting with page- and a readable local .php file such as pearcmd.php sits on the server. Previdian has logged 68 attempts.
Reality
Security · September 16, 2026 · Confirmed4 publishers