What’s Vulnerable › Vulnerabilities

CVE-2026-24811: An improper pointer arithmetic in root-project/root at builtins/zlib/inffast.c

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-27 · updated 2026-06-17
• Weakness: CWE-20

Description

Vulnerability in root-project root (builtins/zlib modules). This vulnerability is associated with program files inffast.C. This issue affects root.

Affected products

• root-project root: through 6.34.08

References

• https://github.com/root-project/root/pull/18526
• https://root.cern/blog/recent-common-vulnerabilities-when-does-ROOT-need-to-be-updated/

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