ShowDoc Vulnerability Patched in 2020 Now Used in Active Server Takeovers
2026-04-18T20:51:42Z•e0f71b5e752030413d68d28d72cb84f80d790954acb078b992eb9280df168434
Android malwareAstrinoxCGrabberCVE-2025-0520DDoS-for-hireDVR botnetDirect-SysGitHub supply chainMassivMiraiNexcoriumOT malwareOperation PowerOFFRecruitRatSaferRatShowDocZionSiphonbanking appscredential theftcrypto theft','OpenAI GPT-5.4-Cyber','Trusted Access for Cyber (law enforcement takedownremote code executionserver takeoverwater systemsweb shell
What happened
Multiple active threats and notable cyber developments reported: a 5-year-old ShowDoc vulnerability (CVE-2025-0520) patched in 2020 is being actively exploited worldwide to deploy web shells, achieve remote code execution and full server takeover; Europol-led Operation PowerOFF identified ~75,000 users of DDoS-for-hire services, resulted in 4 arrests and seizure of 53 domains; four Android malware campaigns (RecruitRat, SaferRat, Astrinox, Massiv) target over 800 banking apps; a new Mirai variant “Nexcorium” hijacks TBK DVR devices for DDoS botnets; ZionSiphon OT-focused malware targets water/
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- hackread
- Record identifier
- e0f71b5e752030413d68d28d72cb84f80d790954acb078b992eb9280df168434
- Enrichment time
- 2026-04-18T20:51:42Z
- AI-assisted enrichment
- Yes
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