CVE-2026-86140

highCVSS 8covered by 3 sourcesfirst seen 2026-09-05

Ein Angreifer kann mehrere Schwachstellen in libxml2 ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um Daten zu manipulieren oder offenzulegen und um einen Denial of Service herbeizuführen.

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Exploitation outlook

Low exploitation risk0.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Advisory coverage (3)

highCVE-2026-86140: In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overf…msrc · 2026-09-08
medium[NEU] [mittel] libxml2: Mehrere Schwachstellencert-bund · 2026-09-07
highCVE-2026-86140: In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overf…nvd · 2026-09-05

External references

NVD record for CVE-2026-86140

CVE.org record

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