CVE-2026-62958 libriscv - Out-of-Bounds Read

libriscv < 1.18 contains an out-of-bounds read caused by improper validation of section-header offsets in binary loading, letting attackers crash the host or potentially disclose host memory, exploit requires crafted ELF binary.

CVSS base score 7.9 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out-of-Bounds Read
Impact
Denial Of Service, Information Disclosure
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-20

Vendor fix

Update to version 1.18 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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