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SECURITY ADVISORYKISA OFFICIAL SOURCE

KISA advisory for CVE-2026-20303 and CVE-2026-20304

The Korea Internet & Security Agency published this security advisory on 2026.08.06. It concerns Cisco. Related identifiers include CVE-2026-20303, CVE-2026-20304, CVE-2026-20310, CVE-2026-20312, CVE-2026-20313. The linked KISA notice is the authoritative Korean-language source; verify affected products, versions, and required actions there.

View Korean detail
Published2026.08.06
CategorySecurity advisory
Related CVE16
Detail statussuccess

Related CVE intelligence

CVE-2026-20303 intelligence and remediation →CVE-2026-20304 intelligence and remediation →CVE-2026-20310 intelligence and remediation →CVE-2026-20312 intelligence and remediation →CVE-2026-20313 intelligence and remediation →CVE-2026-20267 intelligence and remediation →CVE-2026-20268 intelligence and remediation →CVE-2026-20269 intelligence and remediation →CVE-2026-20270 intelligence and remediation →CVE-2026-20271 intelligence and remediation →CVE-2026-20272 intelligence and remediation →CVE-2026-20273 intelligence and remediation →CVE-2026-20200 intelligence and remediation →CVE-2026-20301 intelligence and remediation →CVE-2026-20263 intelligence and remediation →CVE-2026-20124 intelligence and remediation →

Official source and references

The official KISA notice is published in Korean. This English page provides a bounded navigation summary and does not replace the official affected-version or remediation instructions.

Open the official KISA noticehttps://www.boho.or.kr/kr/bbs/view.do?searchCnd=&bbsId=B0000133&searchWrd=&menuNo=205020&pageIndex=1&categoryCode=&nttId=72151KISA 보호나라&KrCERT/CChttps://www.boho.or.kr/정보보호 서비스https://www.boho.or.kr/kr/subPage.do?menuNo=205007서비스 신청하기https://www.boho.or.kr/kr/apply/list.do?menuNo=205003침해사고 원인분석 및 대응조치https://www.boho.or.kr/kr/subPage.do?menuNo=205004사이버위협https://www.boho.or.kr/kr/bbs/list.do?menuNo=205024&bbsId=B0000342정보보호 용어https://www.boho.or.kr/kr/bbs/list.do?menuNo=205025&bbsId=B0001020취약점 정보https://www.boho.or.kr/kr/bbs/list.do?menuNo=205023&bbsId=B0000302침해사고 신고https://www.boho.or.kr/kr/subPage.do?menuNo=205033신고하기https://www.boho.or.kr/kr/report/list.do?menuNo=205034보안상담https://www.boho.or.kr/kr/consult/consultForm.do?menuNo=205035알림마당https://www.boho.or.kr/kr/bbs/list.do?menuNo=205020&bbsId=B0000133공지사항https://www.boho.or.kr/kr/bbs/list.do?menuNo=205022&bbsId=B0000132보고서/가이드https://www.boho.or.kr/kr/bbs/list.do?menuNo=205021&bbsId=B0000127카드뉴스https://www.boho.or.kr/kr/bbs/list.do?menuNo=205090&bbsId=B0001030자세히 알아보기https://www.boho.or.kr/kr/bbs/list.do?menuNo=205027&bbsId=B0000030KrCERT/CChttps://www.boho.or.kr/kr/subPage.do?menuNo=205028Vision&Missionhttps://www.boho.or.kr/kr/subPage.do?menuNo=205029Traffic Light Protocolhttps://www.boho.or.kr/kr/subPage.do?menuNo=205065Contacthttps://www.boho.or.kr/kr/subPage.do?menuNo=205030APCERT AGM & Conference 2026https://www.boho.or.kr/kr/subPage.do?menuNo=205122ENGhttps://www.boho.or.kr/en/main.do개인 서비스https://www.boho.or.kr/kr/subPage.do?menuNo=205116이용안내https://www.boho.or.kr/kr/subPage.do?menuNo=205043FAQhttps://www.boho.or.kr/kr/bbs/list.do?menuNo=205056&bbsId=B0000131개인정보처리방침https://www.boho.or.kr/kr/bbs/list.do?menuNo=205071&bbsId=B0001010보호나라 RSS 서비스https://www.boho.or.kr/kr/subPage.do?menuNo=205121홈https://www.boho.or.kr/kr/main.dohttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-sdwan-faLcR3Khttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-sdwan-faLcR3Khttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxe-V8NMuMZJhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxe-V8NMuMZJhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfUhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU
ACTION BOUNDARY

Use the official notice for the final change decision.

Match the named product and version to your asset inventory, confirm the vendor-supported fix or mitigation, preserve rollback options, and verify service health and security logs after the change.